User:SuperWIKI/sandbox/State deans (4)

For senators and representatives who represented defunct parties or switched parties intra-term, only their latest party while in office is reflected. Most states, due to not having long-running deans until the 1900s, have tables only starting from that decade.

Guidelines

Checklist

Check all dates (Congress sessions, individual terms, deanships, ayds)
Check seniority (shared seniority, alphabetical precedence, combined House and Senate tenures, causes of departure)
Check numbered seniority (if death caused seniority to go up independent of list number)

Seniority criteria

Number of consecutive terms (for speed, use seniority date)
Number of past, non-consecutive terms
Alphabetical order of surname (if more than two people fulfill same seniority after above criteria, use individual with earliest surname in alphabet)
For Representatives elected to fill vacancy, seniority is calculated from date of special election. Column-wise (Congress), at-large representatives use the date they were sworn in.

BLANK

Senior members of -- congressional delegation
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)
1st	March 4, 1789 – March 4, 1791
2nd	March 4, 1791 – March 4, 1793
3rd	March 4, 1793 – March 4, 1795
4th	March 4, 1795 – March 4, 1797
5th	March 4, 1797 – March 4, 1799
6th	March 4, 1799 – March 4, 1801
7th	March 4, 1801 – March 4, 1803
8th	March 4, 1803 – March 4, 1805
9th	March 4, 1805 – March 4, 1807
10th	March 4, 1807 – March 4, 1809
11th	March 4, 1809 – March 4, 1811
12th	March 4, 1811 – March 4, 1813
13th	March 4, 1813 – March 4, 1815
14th	March 4, 1815 – March 4, 1817
15th	March 4, 1817 – March 4, 1819
16th	March 4, 1819 – March 4, 1821
17th	March 4, 1821 – March 4, 1823
18th	March 4, 1823 – March 4, 1825
19th	March 4, 1825 – March 4, 1827
20th	March 4, 1827 – March 4, 1829
21st	March 4, 1829 – March 4, 1831
22nd	March 4, 1831 – March 4, 1833
23rd	March 4, 1833 – March 4, 1835
24th	March 4, 1835 – March 4, 1837
25th	March 4, 1837 – March 4, 1839
26th	March 4, 1839 – March 4, 1841
27th	March 4, 1841 – March 4, 1843
28th	March 4, 1843 – March 4, 1845
29th	March 4, 1845 – March 4, 1847
30th	March 4, 1847 – March 4, 1849
31st	March 4, 1849 – March 4, 1851
32nd	March 4, 1851 – March 4, 1853
33rd	March 4, 1853 – March 4, 1855
34th	March 4, 1855 – March 4, 1857
35th	March 4, 1857 – March 4, 1859
36th	March 4, 1859 – March 4, 1861
37th	March 4, 1861 – March 4, 1863
38th	March 4, 1863 – March 4, 1865
39th	March 4, 1865 – March 4, 1867
40th	March 4, 1867 – March 4, 1869
41st	March 4, 1869 – March 4, 1871
42nd	March 4, 1871 – March 4, 1873
43rd	March 4, 1873 – March 4, 1875
44th	March 4, 1875 – March 4, 1877
45th	March 4, 1877 – March 4, 1879
46th	March 4, 1879 – March 4, 1881
47th	March 4, 1881 – March 4, 1883
48th	March 4, 1883 – March 4, 1885
49th	March 4, 1885 – March 4, 1887
50th	March 4, 1887 – March 4, 1889
51st	March 4, 1889 – March 4, 1891
52nd	March 4, 1891 – March 4, 1893
53rd	March 4, 1893 – March 4, 1895
54th	March 4, 1895 – March 4, 1897
55th	March 4, 1897 – March 4, 1899
56th	March 4, 1899 – March 4, 1901
57th	March 4, 1901 – March 4, 1903
58th	March 4, 1903 – March 4, 1905
59th	March 4, 1905 – March 4, 1907
60th	March 4, 1907 – March 4, 1909
61st	March 4, 1909 – March 4, 1911
62nd	March 4, 1911 – March 4, 1913
63rd	March 4, 1913 – March 4, 1915
64th	March 4, 1915 – March 4, 1917
65th	March 4, 1917 – March 4, 1919
66th	March 4, 1919 – March 4, 1921
67th	March 4, 1921 – March 4, 1923
68th	March 4, 1923 – March 4, 1925
69th	March 4, 1925 – March 4, 1927
70th	March 4, 1927 – March 4, 1929
71st	March 4, 1929 – March 4, 1931
72nd	March 4, 1931 – March 4, 1933
73rd	March 4, 1933 – January 3, 1935
74th	January 3, 1935 – January 3, 1937
75th	January 3, 1937 – January 3, 1939
76th	January 3, 1939 – January 3, 1941
77th	January 3, 1941 – January 3, 1943
78th	January 3, 1943 – January 3, 1945
79th	January 3, 1945 – January 3, 1947
80th	January 3, 1947 – January 3, 1949
81st	January 3, 1949 – January 3, 1951
82nd	January 3, 1951 – January 3, 1953
83rd	January 3, 1953 – January 3, 1955
84th	January 3, 1955 – January 3, 1957
85th	January 3, 1957 – January 3, 1959
86th	January 3, 1959 – January 3, 1961
87th	January 3, 1961 – January 3, 1963
88th	January 3, 1963 – January 3, 1965
89th	January 3, 1965 – January 3, 1967
90th	January 3, 1967 – January 3, 1969
91st	January 3, 1969 – January 3, 1971
92nd	January 3, 1971 – January 3, 1973
93rd	January 3, 1973 – January 3, 1975
94th	January 3, 1975 – January 3, 1977
95th	January 3, 1977 – January 3, 1979
96th	January 3, 1979 – January 3, 1981
97th	January 3, 1981 – January 3, 1983
98th	January 3, 1983 – January 3, 1985
99th	January 3, 1985 – January 3, 1987
100th	January 3, 1987 – January 3, 1989
101st	January 3, 1989 – January 3, 1991
102nd	January 3, 1991 – January 3, 1993
103rd	January 3, 1993 – January 3, 1995
104th	January 3, 1995 – January 3, 1997
105th	January 3, 1997 – January 3, 1999
106th	January 3, 1999 – January 3, 2001
107th	January 3, 2001 – January 3, 2003
108th	January 3, 2003 – January 3, 2005
109th	January 3, 2005 – January 3, 2007
110th	January 3, 2007 – January 3, 2009
111th	January 3, 2009 – January 3, 2011
112th	January 3, 2011 – January 3, 2013
113th	January 3, 2013 – January 3, 2015
114th	January 3, 2015 – January 3, 2017
115th	January 3, 2017 – January 3, 2019
116th	January 3, 2019 – January 3, 2021
117th	January 3, 2021 – January 3, 2023
118th	January 3, 2023 – January 3, 2025
119th	January 3, 2025 – present
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)

Kansas

Senior members of Kansas's congressional delegation
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)
36th	January 29, 1861 – March 4, 1861
37th	March 4, 1861 – March 4, 1863
38th	March 4, 1863 – March 4, 1865
39th	March 4, 1865 – March 4, 1867
40th	March 4, 1867 – March 4, 1869
41st	March 4, 1869 – March 4, 1871
42nd	March 4, 1871 – March 4, 1873
43rd	March 4, 1873 – March 4, 1875
44th	March 4, 1875 – March 4, 1877
45th	March 4, 1877 – March 4, 1879
46th	March 4, 1879 – March 4, 1881
47th	March 4, 1881 – March 4, 1883
48th	March 4, 1883 – March 4, 1885
49th	March 4, 1885 – March 4, 1887
50th	March 4, 1887 – March 4, 1889
51st	March 4, 1889 – March 4, 1891
52nd	March 4, 1891 – March 4, 1893
53rd	March 4, 1893 – March 4, 1895
54th	March 4, 1895 – March 4, 1897
55th	March 4, 1897 – March 4, 1899
56th	March 4, 1899 – March 4, 1901
57th	March 4, 1901 – March 4, 1903
58th	March 4, 1903 – March 4, 1905
59th	March 4, 1905 – March 4, 1907
60th	March 4, 1907 – March 4, 1909
61st	March 4, 1909 – March 4, 1911
62nd	March 4, 1911 – March 4, 1913
63rd	March 4, 1913 – March 4, 1915
64th	March 4, 1915 – March 4, 1917
65th	March 4, 1917 – March 4, 1919
66th	March 4, 1919 – March 4, 1921
67th	March 4, 1921 – March 4, 1923
68th	March 4, 1923 – March 4, 1925
69th	March 4, 1925 – March 4, 1927
70th	March 4, 1927 – March 4, 1929
71st	March 4, 1929 – March 4, 1931
72nd	March 4, 1931 – March 4, 1933
73rd	March 4, 1933 – January 3, 1935
74th	January 3, 1935 – January 3, 1937
75th	January 3, 1937 – January 3, 1939
76th	January 3, 1939 – January 3, 1941
77th	January 3, 1941 – January 3, 1943
78th	January 3, 1943 – January 3, 1945
79th	January 3, 1945 – January 3, 1947
80th	January 3, 1947 – January 3, 1949
81st	January 3, 1949 – January 3, 1951
82nd	January 3, 1951 – January 3, 1953
83rd	January 3, 1953 – January 3, 1955
84th	January 3, 1955 – January 3, 1957
85th	January 3, 1957 – January 3, 1959
86th	January 3, 1959 – January 3, 1961
87th	January 3, 1961 – January 3, 1963
88th	January 3, 1963 – January 3, 1965
89th	January 3, 1965 – January 3, 1967
90th	January 3, 1967 – January 3, 1969
91st	January 3, 1969 – January 3, 1971
92nd	January 3, 1971 – January 3, 1973
93rd	January 3, 1973 – January 3, 1975
94th	January 3, 1975 – January 3, 1977
95th	January 3, 1977 – January 3, 1979
96th	January 3, 1979 – January 3, 1981
97th	January 3, 1981 – January 3, 1983
98th	January 3, 1983 – January 3, 1985
99th	January 3, 1985 – January 3, 1987
100th	January 3, 1987 – January 3, 1989
101st	January 3, 1989 – January 3, 1991
102nd	January 3, 1991 – January 3, 1993
103rd	January 3, 1993 – January 3, 1995
104th	January 3, 1995 – January 3, 1997
105th	January 3, 1997 – January 3, 1999
106th	January 3, 1999 – January 3, 2001
107th	January 3, 2001 – January 3, 2003
108th	January 3, 2003 – January 3, 2005
109th	January 3, 2005 – January 3, 2007
110th	January 3, 2007 – January 3, 2009
111th	January 3, 2009 – January 3, 2011
112th	January 3, 2011 – January 3, 2013
113th	January 3, 2013 – January 3, 2015
114th	January 3, 2015 – January 3, 2017
115th	January 3, 2017 – January 3, 2019
116th	January 3, 2019 – January 3, 2021
117th	January 3, 2021 – January 3, 2023
118th	January 3, 2023 – present
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)

Kentucky

Senior members of Kentucky's congressional delegation
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)
2nd	June 1, 1792 – June 18, 1792	Vacant (not yet elected)	None	Vacant (not yet elected)
	June 18, 1792 – November 8, 1792	John Brown^[A]^[B]^[C] Seniority from June 18, 1792^[a] (12 years, 258 days) (lost re-election)	None	Vacant (not yet elected)
	November 8, 1792 – November 9, 1792		Brown (Senate) Seniority from June 18, 1792 (12 years, 258 days)	None^[b]
	November 9, 1792 – March 4, 1793			Alexander D. Orr^[B] Seniority from November 8, 1792 (4 years, 115 days) (retired)
3rd	March 4, 1793 – March 4, 1795
4th	March 4, 1795 – March 4, 1797
5th	March 4, 1797 – March 4, 1799			No clear dean^[c]
6th	March 4, 1799 – March 4, 1801
7th	March 4, 1801 – March 4, 1803
8th	March 4, 1803 – March 4, 1805			John Fowler Seniority from March 4, 1797 (9 years, 364 days) (retired)
9th	March 4, 1805 – August 7, 1805	John Breckinridge Seniority from March 4, 1801 (4 years, 156 days) (appointed Attorney General)	Fowler (House) Seniority from March 4, 1797 (9 years, 364 days)
9th	August 7, 1805 – March 4, 1807	Buckner Thruston Seniority from March 4, 1805 (4 years, 289 days) (appointed circuit court judge)
10th	March 4, 1807 – March 4, 1809		Lyon (House) Seniority from March 4, 1803 (7 years, 364 days)	Matthew Lyon^[D] Seniority from March 4, 1803^[d] (7 years, 364 days) (lost re-election)
11th	March 4, 1809 – December 18, 1809
11th	December 18, 1809 – March 4, 1811	John Pope^[E] Seniority from March 4, 1807 (5 years, 364 days) (retired)
12th	March 4, 1811 – March 4, 1813		Co-deans: Pope (Senate) Desha, Johnson (House) Seniority from March 4, 1807 (5 years, 364 days)	Co-deans: Joseph Desha, Richard Mentor Johnson Seniority from March 4, 1807 (11 years, 364 days) (both retired)
13th	March 4, 1813 – August 23, 1814	George M. Bibb Seniority from March 4, 1811 (3 years, 172 days) (resigned)	Co-deans: Desha, Johnson (House) Seniority from March 4, 1807 (11 years, 364 days)
	August 23, 1814 – December 24, 1814	Jesse Bledsoe Seniority from March 4, 1813 (1 year, 295 days) (resigned)^[1]
	December 24, 1814 – February 2, 1815	George Walker Seniority from August 30, 1814^[e] (156 days) (successor sworn in)^[2]
	February 2, 1815 – March 4, 1815	William T. Barry^[C] Seniority from February 2, 1815^[f]^[g] (1 year, 89 days) (appointed KY circuit court judge)
14th	March 4, 1815 – May 1, 1816
14th	May 1, 1816 – March 4, 1817	Isham Talbot Seniority from February 2, 1815^[f] (4 years, 29 days) (retired)
15th	March 4, 1817 – March 4, 1819
16th	March 4, 1819 – May 28, 1820	William Logan Seniority from March 4, 1819 (1 year, 85 days) (ran for Kentucky governor)	Clay (House) Seniority from October 30, 1815 (5 years, 124 days)	Henry Clay^[F]^[D] Seniority from October 30, 1815^[h] (5 years, 124 days) (retired)
16th	May 28, 1820 – March 4, 1821	Richard Mentor Johnson^[G]^[C] Seniority from December 10, 1819^[f] (9 years, 83 days) (lost re-election, elected to House)
17th	March 4, 1821 – March 4, 1823		Trimble (House) Seniority from March 4, 1817 (9 years, 364 days)	David Trimble^[G] Seniority from March 4, 1817 (9 years, 364 days) (lost re-election)
18th	March 4, 1823 – March 4, 1825
19th	March 4, 1825 – March 4, 1827
20th	March 4, 1827 – June 1, 1828		Metcalfe (House) Seniority from March 4, 1819 (9 years, 89 days)	Thomas Metcalfe Seniority from March 4, 1819 (9 years, 89 days) (ran for Kentucky governor)
20th	June 1, 1828 – March 4, 1829		Johnson^[H] (House and Senate) Seniority from December 10, 1819 (17 years, 83 days)	Richard A. Buckner Seniority from March 4, 1823^[i] (5 years, 364 days) (retired)
21st	March 4, 1829 – March 4, 1831	John Rowan^[C] Seniority from March 4, 1825 (5 years, 364 days) (retired)		Co-deans: Robert P. Letcher (AJ), Charles A. Wickliffe (J) Seniority from March 4, 1823 (9 years, 364 days) (Letcher re-elected late, Wickliffe retired)
22nd	March 4, 1831 – March 4, 1833	George M. Bibb^[I] Seniority from March 4, 1829 (5 years, 364 days) (retired)
23rd	March 4, 1833 – March 4, 1835			Chittenden Lyon Seniority from March 4, 1827 (7 years, 364 days) (retired)
24th	March 4, 1835 – March 4, 1837	Henry Clay^[J]^[K]^[C] Seniority from November 10, 1831^[j] (10 years, 141 days) (resigned)		Richard Mentor Johnson^[L]^[D] Seniority from March 4, 1829 (7 years, 364 days) (elected Vice President)
25th	March 4, 1837 – March 4, 1839		Clay^[H] (Senate) Seniority from November 10, 1831 (10 years, 141 days)	John Chambers^[D] Seniority from March 4, 1835^[k] (3 years, 364 days) (retired)
26th	March 4, 1839 – March 4, 1841			William J. Graves Seniority from March 4, 1835^[i] (5 years, 364 days) (retired)
27th	March 4, 1841 – March 31, 1842			Co-deans: Joseph R. Underwood, John White^[M] Seniority from March 4, 1835 (7 years, 364 days) (Underwood retired)
27th	March 31, 1842 – March 4, 1843	James T. Morehead Seniority from March 4, 1841 (5 years, 364 days) (retired)	Co-deans: Underwood, White (House) Seniority from March 4, 1835 (7 years, 364 days)
28th	March 4, 1843 – March 4, 1845		White (House) Seniority from March 4, 1835 (9 years, 364 days)	John White Seniority from March 4, 1835 (9 years, 364 days) (retired)
29th	March 4, 1845 – March 4, 1847		Boyd (House) Seniority from March 4, 1839 (15 years, 364 days)	Linn Boyd^[N]^[D] Seniority from March 4, 1839^[d] (15 years, 364 days) (retired)
30th	March 4, 1847 – June 12, 1848	John J. Crittenden^[K] Seniority from March 31, 1842^[f] (6 years, 73 days) (elected Kentucky governor)
30th	June 12, 1848 – March 4, 1849	Joseph R. Underwood^[C] Seniority from March 4, 1847 (5 years, 364 days) (retired)
31st	March 4, 1849 – March 4, 1851
32nd	March 4, 1851 – March 4, 1853
33rd	March 4, 1853 – March 4, 1855	Archibald Dixon Seniority from September 1, 1852^[f] (2 years, 183 days) (retired)
34th	March 4, 1855 – March 4, 1857	John B. Thompson^[C] Seniority from March 4, 1853 (5 years, 364 days) (retired)	Co-deans: Thompson (Senate) Cox, Elliott (House) Seniority from March 4, 1853 (3 years, 364 days)	Co-deans: Leander Cox (KN), John M. Elliott (D) Seniority from March 4, 1853 (3 years, 364 days) (Cox lost re-election)
35th	March 4, 1857 – March 4, 1859		Co-deans: Thompson (Senate) Elliott (House) Seniority from March 4, 1853 (5 years, 364 days)	John M. Elliott Seniority from March 4, 1853 (5 years, 364 days) (retired)
36th	March 4, 1859 – March 4, 1861	John J. Crittenden^[I] Seniority from March 4, 1855 (5 years, 364 days) (elected to House)	Co-deans: Crittenden (House and Senate) Burnett (House) Seniority from March 4, 1855 (6 years, 274 days)	Henry C. Burnett Seniority from March 4, 1855 (6 years, 274 days) (expelled)^[4]
37th	March 4, 1861 – December 3, 1861	Lazarus W. Powell Seniority from March 4, 1859 (5 years, 364 days) (retired)
37th	December 3, 1861 – March 4, 1863		Crittenden (House and Senate) Seniority from March 4, 1855 (7 years, 364 days)	Robert Mallory Seniority from March 4, 1859 (5 years, 364 days) (lost re-election)
38th	March 4, 1863 – March 4, 1865		Co-deans: Powell (Senate) Mallory (House) Seniority from March 4, 1859 (5 years, 364 days)
39th	March 4, 1865 – September 7, 1866	Garrett Davis^[O] Seniority from December 10, 1861^[f] (10 years, 287 days) (died)	Grider (House) Seniority from March 4, 1861^[d] (5 years, 187 days)	Henry Grider^[D] Seniority from March 4, 1861^[d] (5 years, 187 days) (died)
39th	September 7, 1866 – March 4, 1867		Harding (House) Seniority from March 4, 1861 (5 years, 364 days)	Aaron Harding Seniority from March 4, 1861 (5 years, 364 days) (retired)
40th	March 4, 1867 – March 4, 1869		Davis (Senate) Seniority from December 10, 1861 (10 years, 287 days)	Lawrence S. Trimble Seniority from March 4, 1865 (5 years, 364 days) (lost renomination)^[5]
41st	March 4, 1869 – March 4, 1871
42nd	March 4, 1871 – September 22, 1872			Co-deans: George M. Adams, James B. Beck Seniority from March 4, 1867 (7 years, 364 days) (Adams lost re-election, Beck retired)
42nd	September 22, 1872 – March 4, 1873	John W. Stevenson^[P]^[C] Seniority from March 4, 1871 (5 years, 364 days) (retired)	Co-deans: Adams, Beck (House) Seniority from March 4, 1867 (7 years, 364 days)
43rd	March 4, 1873 – March 4, 1875
44th	March 4, 1875 – March 4, 1877		Stevenson (Senate) Seniority from March 4, 1871 (5 years, 364 days)	John Y. Brown^[D] Seniority from March 4, 1873^[d] (3 years, 364 days) (retired)
45th	March 4, 1877 – March 4, 1879	Thomas C. McCreery^[K] Seniority from March 4, 1873 (5 years, 364 days) (retired)	Co-deans: McCreery (Senate) Durham (House) Seniority from March 4, 1873 (5 years, 364 days)	Milton J. Durham Seniority from March 4, 1873 (5 years, 364 days) (lost renomination)
46th	March 4, 1879 – March 4, 1881	James B. Beck^[Q]^[C] Seniority from March 4, 1877 (13 years, 60 days) (died)	Knott (House) Seniority from March 4, 1875^[d] (7 years, 364 days)	J. Proctor Knott^[D] Seniority from March 4, 1875^[d] (7 years, 364 days) (retired)
47th	March 4, 1881 – March 4, 1883
48th	March 4, 1883 – March 4, 1885		Blackburn (House and Senate) Seniority from March 4, 1875 (21 years, 364 days)	J. C. S. Blackburn Seniority from March 4, 1875 (9 years, 364 days) (elected to Senate)
49th	March 4, 1885 – March 4, 1887			Co-deans: John G. Carlisle,^[R] Albert S. Willis Seniority from March 4, 1877 (9 years, 364 days) (Willis lost renomination)^[6]
50th	March 4, 1887 – March 4, 1889			John G. Carlisle^[R] Seniority from March 4, 1877 (13 years, 83 days) (elected to Senate)
51st	March 4, 1889 – May 3, 1890
	May 3, 1890 – May 26, 1890	J. C. S. Blackburn^[C] Seniority from March 4, 1885 (11 years, 364 days) (lost re-election)
	May 26, 1890 – March 4, 1891			W. C. P. Breckinridge Seniority from March 4, 1885^[i] (9 years, 364 days) (retired)
52nd	March 4, 1891 – March 4, 1893
53rd	March 4, 1893 – March 4, 1895
54th	March 4, 1895 – March 4, 1897			James B. McCreary Seniority from March 4, 1885 (11 years, 364 days) (lost renomination)^[7]
55th	March 4, 1897 – March 4, 1899	William Lindsay Seniority from February 15, 1893^[f] (8 years, 16 days) (retired)	Lindsay (Senate) Seniority from February 15, 1893 (8 years, 16 days)	Albert S. Berry Seniority from March 4, 1893 (7 years, 364 days) (lost renomination)
56th	March 4, 1899 – March 4, 1901
57th	March 4, 1901 – March 25, 1902	William J. Deboe Seniority from April 29, 1897^[f]^[8] (5 years, 308 days) (retired)	Rhea (House) Seniority from March 4, 1897 (5 years, 21 days)	John S. Rhea Seniority from March 4, 1897^[i] (5 years, 21 days) (election invalidated)^[9]
57th	March 25, 1902 – March 4, 1903		Co-deans: Smith, Wheeler (House) Seniority from March 4, 1897 (5 years, 364 days)	Co-deans: David H. Smith, Charles K. Wheeler Seniority from March 4, 1897 (5 years, 364 days) (Wheeler retired)
58th	March 4, 1903 – March 4, 1905	J. C. S. Blackburn^[I]^[S] Seniority from March 4, 1901 (5 years, 364 days) (lost re-election)^[10]	Smith (House) Seniority from March 4, 1897 (9 years, 364 days)	David H. Smith Seniority from March 4, 1897 (9 years, 364 days) (retired)
59th	March 4, 1905 – March 4, 1907
60th	March 4, 1907 – March 4, 1909	James B. McCreary^[C] Seniority from March 4, 1903 (5 years, 364 days) (lost renomination)	Co-deans: McCreary (Senate) James (House) Seniority from March 4, 1903 (5 years, 364 days)	Ollie M. James Seniority from March 4, 1903 (9 years, 364 days) (elected to Senate)
61st	March 4, 1909 – March 4, 1911	Thomas H. Paynter^[C] Seniority from March 4, 1907 (5 years, 364 days) (retired)	James (House and Senate) Seniority from March 4, 1903 (15 years, 177 days)
62nd	March 4, 1911 – March 4, 1913
63rd	March 4, 1913 – May 23, 1914	William O. Bradley Seniority from March 4, 1909 (5 years, 80 days) (died)		Co-deans: J. Swagar Sherley, Augustus O. Stanley Seniority from March 4, 1903 (11 years, 364 days) (Stanley ran for Senate)
63rd	May 23, 1914 – March 4, 1915	Ollie M. James^[C] Seniority from March 4, 1913 (5 years, 177 days) (died)
64th	March 4, 1915 – March 4, 1917			J. Swagar Sherley Seniority from March 4, 1903 (15 years, 364 days) (lost re-election)
65th	March 4, 1917 – August 28, 1918
65th	August 28, 1918 – March 4, 1919	J. C. W. Beckham Seniority from March 4, 1915 (5 years, 364 days) (lost re-election)	Sherley (House) Seniority from March 4, 1903 (15 years, 364 days)
66th	March 4, 1919 – March 4, 1921		Co-deans: Johnson, Langley (House) Seniority from March 4, 1907 (18 years, 313 days)	Co-deans: Ben Johnson (D), John W. Langley (R) Seniority from March 4, 1907 (18 years, 313 days) (Langley resigned)
67th	March 4, 1921 – March 4, 1923	Augustus O. Stanley^[C] Seniority from May 19, 1919^[l] (5 years, 288 days) (lost re-election)
68th	March 4, 1923 – March 4, 1925
69th	March 4, 1925 – January 11, 1926	Richard P. Ernst Seniority from March 4, 1921 (5 years, 364 days) (lost re-election)
69th	January 11, 1926 – March 4, 1927		Johnson (House) Seniority from March 4, 1907 (19 years, 364 days)	Ben Johnson Seniority from March 4, 1907 (19 years, 364 days) (retired)
70th	March 4, 1927 – March 4, 1929	Frederic M. Sackett Seniority from March 4, 1925 (4 years, 311 days) (appointed Ambassador to Germany)	Barkley (House and Senate) Seniority from March 4, 1913 (35 years, 321 days)	David H. Kincheloe Seniority from March 4, 1915 (15 years, 215 days) (appointed U.S. Customs Court judge)
71st	March 4, 1929 – January 9, 1930
	January 9, 1930 – October 5, 1930	Alben W. Barkley^[T]^[C] Seniority from March 4, 1927 (21 years, 321 days) (elected Vice President)
	October 5, 1930 – November 30, 1930			Maurice Thatcher Seniority from March 4, 1923 (9 years, 364 days) (ran for Senate)
	November 30, 1930 – March 4, 1931
72nd	March 4, 1931 – March 4, 1933
73rd	March 4, 1933 – January 3, 1935			W. Voris Gregory Seniority from March 4, 1927 (9 years, 220 days) (died)
74th	January 3, 1935 – October 10, 1936
	October 10, 1936 – December 5, 1936			Fred M. Vinson^[D] Seniority from March 4, 1931^[m] (7 years, 69 days) (appointed appeals court judge)^[11]
	December 5, 1936 – January 3, 1937
75th	January 3, 1937 – May 12, 1938
75th	May 12, 1938 – January 3, 1939			Virgil Chapman^[D] Seniority from March 4, 1931^[d] (17 years, 305 days) (elected to Senate)
76th	January 3, 1939 – January 3, 1941
77th	January 3, 1941 – January 3, 1943
78th	January 3, 1943 – January 3, 1945
79th	January 3, 1945 – January 3, 1947
80th	January 3, 1947 – January 3, 1949
81st	January 3, 1949 – January 19, 1949			Brent Spence Seniority from March 4, 1931 (31 years, 305 days) (retired)
81st	January 19, 1949 – January 3, 1951	Virgil Chapman^[C] Seniority from January 3, 1949 (2 years, 64 days) (died)	Chapman (House and Senate) Seniority from March 4, 1931^[d] (20 years, 4 days)
82nd	January 3, 1951 – March 8, 1951
82nd	March 8, 1951 – January 3, 1953	Earle Clements^[C] Seniority from November 27, 1950^[n] (6 years, 37 days) (lost re-election)	Spence (House) Seniority from March 4, 1931 (31 years, 305 days)
83rd	January 3, 1953 – January 3, 1955
84th	January 3, 1955 – January 3, 1957
85th	January 3, 1957 – January 3, 1959	John Sherman Cooper^[K] Seniority from November 7, 1956^[n] (16 years, 57 days) (retired)
86th	January 3, 1959 – January 3, 1961
87th	January 3, 1961 – January 3, 1963
88th	January 3, 1963 – January 3, 1965		Chelf (House) Seniority from January 3, 1945 (22 years, 0 days)	Frank Chelf Seniority from January 3, 1945 (22 years, 0 days) (lost re-election)
89th	January 3, 1965 – January 3, 1967
90th	January 3, 1967 – January 3, 1969		Perkins (House) Seniority from January 3, 1949 (35 years, 213 days)	Carl D. Perkins Seniority from January 3, 1949 (35 years, 213 days) (died)
91st	January 3, 1969 – January 3, 1971
92nd	January 3, 1971 – January 3, 1973
93rd	January 3, 1973 – December 27, 1974	Marlow Cook Seniority from December 17, 1968^[e] (6 years, 10 days) (resigned)
93rd	December 27, 1974 – January 3, 1975	Walter Dee Huddleston Seniority from January 3, 1973 (12 years, 0 days) (lost re-election)
94th	January 3, 1975 – January 3, 1977
95th	January 3, 1977 – January 3, 1979
96th	January 3, 1979 – January 3, 1981
97th	January 3, 1981 – January 3, 1983
98th	January 3, 1983 – August 3, 1984
98th	August 3, 1984 – January 3, 1985		Natcher (House) Seniority from August 1, 1953 (40 years, 240 days)	William Natcher Seniority from August 1, 1953^[h] (40 years, 240 days) (died)
99th	January 3, 1985 – January 3, 1987	Wendell Ford Seniority from December 28, 1974^[e] (24 years, 6 days) (retired)
100th	January 3, 1987 – January 3, 1989
101st	January 3, 1989 – January 3, 1991
102nd	January 3, 1991 – January 3, 1993
103rd	January 3, 1993 – March 29, 1994
103rd	March 29, 1994 – January 3, 1995		Mazzoli (House) Seniority from January 3, 1971 (24 years, 0 days)	Romano Mazzoli Seniority from January 3, 1971 (24 years, 0 days) (retired)
104th	January 3, 1995 – January 3, 1997		Ford (Senate) Seniority from December 28, 1974 (24 years, 6 days)	Hal Rogers^[U] Seniority from January 3, 1981 (43 years, 313 days) (Incumbent)
105th	January 3, 1997 – January 3, 1999
106th	January 3, 1999 – January 3, 2001	Mitch McConnell^[V] Seniority from January 3, 1985 (39 years, 313 days) (Incumbent)	Rogers (House) Seniority from January 3, 1981 (43 years, 313 days)
107th	January 3, 2001 – January 3, 2003
108th	January 3, 2003 – January 3, 2005
109th	January 3, 2005 – January 3, 2007
110th	January 3, 2007 – January 3, 2009
111th	January 3, 2009 – January 3, 2011
112th	January 3, 2011 – January 3, 2013
113th	January 3, 2013 – January 3, 2015
114th	January 3, 2015 – January 3, 2017
115th	January 3, 2017 – January 3, 2019
116th	January 3, 2019 – January 3, 2021
117th	January 3, 2021 – January 3, 2023
118th	January 3, 2023 – January 3, 2025
119th	January 3, 2025 – present
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)

Louisiana

Senior members of Louisiana's congressional delegation (1871–present)
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)
42nd	March 4, 1871 – November 1, 1872	William Pitt Kellogg Seniority from July 9, 1868^[f] (4 years, 115 days) (elected Louisiana governor)	Kellogg (Senate) Seniority from July 9, 1868 (4 years, 115 days)	Chester Bidwell Darrall Seniority from March 4, 1869^[i] (5 years, 364 days) (co-dean after Sheldon lost re-election)
42nd	November 1, 1872 – March 4, 1873	J. R. West Seniority from March 4, 1871 (5 years, 364 days) (retired)	Darrall (House) Seniority from March 4, 1869^[i] (5 years, 364 days)
43rd	March 4, 1873 – March 4, 1875
44th	March 4, 1875 – June 8, 1876		Co-deans: Darrall, Morey (House) Seniority from March 4, 1869 (7 years, 96 days)	Co-deans: Chester Bidwell Darrall, Frank Morey Seniority from March 4, 1869 (7 years, 96 days) (Morey's election contested)^[12]
44th	June 8, 1876 – March 4, 1877		Darrall (House) Seniority from March 4, 1869 (8 years, 353 days)	Chester Bidwell Darrall Seniority from March 4, 1869 (8 years, 353 days) (election contested)^[13]
45th	March 4, 1877 – February 20, 1878	James B. Eustis Seniority from January 12, 1876^[f]^[o] (3 years, 50 days) (lost re-election)
45th	February 20, 1878 – March 4, 1879		Co-deans: Gibson^[W] (House and Senate) Ellis (House) Seniority from March 4, 1875 (9 years, 364 days)	Co-deans: E. John Ellis, Randall L. Gibson Seniority from March 4, 1875 (7 years, 364 days) (Gibson elected to Senate)
46th	March 4, 1879 – March 4, 1881	William Pitt Kellogg^[I] Seniority from March 4, 1877^[p] (5 years, 364 days) (elected to House)
47th	March 4, 1881 – March 4, 1883
48th	March 4, 1883 – March 4, 1885	Benjamin F. Jonas Seniority from March 4, 1879 (5 years, 364 days) (lost re-election)		E. John Ellis Seniority from March 4, 1875 (9 years, 364 days) (retired)
49th	March 4, 1885 – March 4, 1887	Randall L. Gibson^[C] Seniority from March 4, 1883 (9 years, 286 days) (died)	Gibson (House and Senate) Seniority from March 4, 1875 (17 years, 286 days)	J. Floyd King Seniority from March 4, 1879 (7 years, 364 days) (lost renomination)
50th	March 4, 1887 – March 4, 1889			Newton C. Blanchard Seniority from March 4, 1881 (13 years, 8 days) (appointed to Senate)
51st	March 4, 1889 – March 4, 1891
52nd	March 4, 1891 – December 15, 1892
52nd	December 15, 1892 – March 4, 1893	Edward Douglass White Seniority from March 4, 1891 (3 years, 8 days) (appointed Supreme Court associate justice)	Blanchard^[W] (House and Senate) Seniority from March 4, 1881 (13 years, 8 days)
53rd	March 4, 1893 – March 12, 1894
53rd	March 12, 1894 – March 4, 1895	Donelson Caffery Seniority from December 31, 1892^[e] (8 years, 62 days) (retired)		Samuel M. Robertson Seniority from December 5, 1887^[h] (19 years, 88 days) (lost renomination)
54th	March 4, 1895 – March 4, 1897
55th	March 4, 1897 – March 4, 1899		Robertson (House) Seniority from December 5, 1887 (19 years, 88 days)
56th	March 4, 1899 – March 4, 1901
57th	March 4, 1901 – March 4, 1903	Samuel D. McEnery Seniority from March 4, 1897 (13 years, 116 days) (died)
58th	March 4, 1903 – March 4, 1905
59th	March 4, 1905 – March 4, 1907
60th	March 4, 1907 – March 8, 1908		Meyer (House) Seniority from March 4, 1891 (17 years, 4 days)	Adolph Meyer Seniority from March 4, 1891 (17 years, 4 days) (died)
	March 8, 1908 – December 26, 1908		Davey (House) Seniority from March 4, 1897^[d] (11 years, 279 days)	Robert C. Davey^[D] Seniority from March 4, 1897^[d] (11 years, 279 days) (died)
	December 26, 1908 – March 4, 1909		Co-deans: McEnery (Senate) Broussard (House) Seniority from March 4, 1897 (13 years, 116 days)	Robert F. Broussard Seniority from March 4, 1897 (17 years, 364 days) (elected to Senate)
61st	March 4, 1909 – June 28, 1910
61st	June 28, 1910 – March 4, 1911	Murphy J. Foster Seniority from March 4, 1901 (11 years, 364 days) (lost renomination)	Broussard^[W] (House and Senate) Seniority from March 4, 1897 (21 years, 39 days)
62nd	March 4, 1911 – March 4, 1913
63rd	March 4, 1913 – March 4, 1915	John Thornton Seniority from December 7, 1910^[f] (4 years, 86 days) (retired)
64th	March 4, 1915 – March 4, 1917	Joseph E. Ransdell^[C] Seniority from March 4, 1913 (17 years, 364 days) (lost renomination)^[15]		John T. Watkins Seniority from March 4, 1905 (15 years, 364 days) (lost renomination)
65th	March 4, 1917 – April 12, 1918
65th	April 12, 1918 – March 4, 1919		Ransdell (House and Senate) Seniority from August 29, 1899^[h] (31 years, 186 days)
66th	March 4, 1919 – March 4, 1921
67th	March 4, 1921 – March 4, 1923			H. Garland Dupré Seniority from November 8, 1910^[h] (13 years, 105 days) (died)
68th	March 4, 1923 – February 21, 1924
68th	February 21, 1924 – March 4, 1925			Co-deans: James B. Aswell, Ladislas Lazaro Seniority from March 4, 1913 (14 years, 26 days) (Lazaro died)
69th	March 4, 1925 – March 4, 1927
70th	March 4, 1927 – March 30, 1927
70th	March 30, 1927 – March 4, 1929			James B. Aswell Seniority from March 4, 1913 (18 years, 12 days) (died)
71st	March 4, 1929 – March 4, 1931
72nd	March 4, 1931 – March 16, 1931	Edwin S. Broussard Seniority from March 4, 1921 (11 years, 364 days) (lost renomination)^[16]	Aswell (House) Seniority from March 4, 1913 (18 years, 12 days)
72nd	March 16, 1931 – March 4, 1933		Wilson (House) Seniority from March 4, 1915 (21 years, 305 days)	Riley J. Wilson Seniority from March 4, 1915 (21 years, 305 days) (lost renomination)
73rd	March 4, 1933 – January 3, 1935	Huey Long Seniority from January 25, 1932^[l] (3 years, 228 days) (assassinated)
74th	January 3, 1935 – September 10, 1935
74th	September 10, 1935 – January 3, 1937	John H. Overton^[C] Seniority from March 4, 1933 (15 years, 71 days) (died)
75th	January 3, 1937 – January 3, 1939		De Rouen (House) Seniority from August 23, 1927 (13 years, 133 days)	René L. De Rouen Seniority from August 23, 1927^[h] (13 years, 133 days) (retired)
76th	January 3, 1939 – January 3, 1941
77th	January 3, 1941 – January 3, 1943		Overton (House and Senate) Seniority from May 12, 1931^[h] (17 years, 2 days)	Co-deans: A. Leonard Allen, Overton Brooks Seniority from January 3, 1937 (16 years, 0 days) (Allen retired)
78th	January 3, 1943 – January 3, 1945
79th	January 3, 1945 – January 3, 1947
80th	January 3, 1947 – May 14, 1948
80th	May 14, 1948 – January 3, 1949	Allen J. Ellender^[X] Seniority from January 3, 1937 (35 years, 206 days) (died)	Co-deans: Ellender (Senate) Allen, Brooks (House) Seniority from January 3, 1937 (16 years, 0 days)
81st	January 3, 1949 – January 3, 1951
82nd	January 3, 1951 – January 3, 1953
83rd	January 3, 1953 – January 3, 1955		Co-deans: Ellender (Senate) Brooks (House) Seniority from January 3, 1937 (24 years, 256 days)	Overton Brooks Seniority from January 3, 1937 (24 years, 256 days) (died)
84th	January 3, 1955 – January 3, 1957
85th	January 3, 1957 – January 3, 1959
86th	January 3, 1959 – January 3, 1961
87th	January 3, 1961 – September 16, 1961
87th	September 16, 1961 – January 3, 1963		Ellender (Senate) Seniority from January 3, 1937 (35 years, 206 days)	F. Edward Hébert Seniority from January 3, 1941 (36 years, 0 days) (retired)
88th	January 3, 1963 – January 3, 1965
89th	January 3, 1965 – January 3, 1967
90th	January 3, 1967 – January 3, 1969
91st	January 3, 1969 – January 3, 1971
92nd	January 3, 1971 – July 27, 1972
92nd	July 27, 1972 – January 3, 1973	Russell B. Long Seniority from December 31, 1948^[n] (38 years, 3 days) (retired)	Hébert (House) Seniority from January 3, 1941 (36 years, 0 days)
93rd	January 3, 1973 – January 3, 1975
94th	January 3, 1975 – January 3, 1977
95th	January 3, 1977 – January 3, 1979		Long (Senate) Seniority from December 31, 1948 (38 years, 3 days)	Joe Waggonner Seniority from December 19, 1961^[h] (17 years, 15 days) (retired)
96th	January 3, 1979 – January 3, 1981			John Breaux Seniority from September 30, 1972^[h] (14 years, 95 days) (elected to Senate)
97th	January 3, 1981 – January 3, 1983
98th	January 3, 1983 – January 3, 1985
99th	January 3, 1985 – January 3, 1987
100th	January 3, 1987 – January 3, 1989	J. Bennett Johnston Seniority from November 14, 1972^[e] (24 years, 50 days) (retired)	Breaux (House and Senate) Seniority from September 30, 1972 (32 years, 95 days)	Lindy Boggs Seniority from March 20, 1973^[h] (17 years, 289 days) (retired)
101st	January 3, 1989 – January 3, 1991
102nd	January 3, 1991 – January 3, 1993			Jerry Huckaby Seniority from January 3, 1977 (16 years, 0 days) (lost re-election)
103rd	January 3, 1993 – January 3, 1995			Bob Livingston Seniority from August 27, 1977^[h] (21 years, 186 days) (resigned)
104th	January 3, 1995 – January 3, 1997
105th	January 3, 1997 – January 3, 1999	John Breaux^[C] Seniority from January 3, 1987 (18 years, 0 days) (retired)
106th	January 3, 1999 – March 1, 1999
106th	March 1, 1999 – January 3, 2001			Billy Tauzin Seniority from May 22, 1980^[h] (24 years, 226 days) (retired)
107th	January 3, 2001 – January 3, 2003
108th	January 3, 2003 – January 3, 2005
109th	January 3, 2005 – January 3, 2007	Mary Landrieu Seniority from January 3, 1997 (18 years, 0 days) (lost re-election)	Baker (House) Seniority from January 3, 1987 (21 years, 30 days)	Richard Baker Seniority from January 3, 1987 (21 years, 30 days) (resigned)
110th	January 3, 2007 – February 2, 2008
110th	February 2, 2008 – January 3, 2009		McCrery (House) Seniority from April 16, 1988 (20 years, 262 days)	Jim McCrery Seniority from April 16, 1988^[h] (20 years, 262 days) (retired)
111th	January 3, 2009 – January 3, 2011		Landrieu (Senate) Seniority from January 3, 1997 (18 years, 0 days)	Rodney Alexander Seniority from January 3, 2003 (10 years, 266 days) (appointed Louisiana Secretary of Veterans Affairs)
112th	January 3, 2011 – January 3, 2013
113th	January 3, 2013 – September 26, 2013
113th	September 26, 2013 – January 3, 2015			Charles Boustany Seniority from January 3, 2005 (12 years, 0 days) (ran for Senate)
114th	January 3, 2015 – January 3, 2017	David Vitter^[C] Seniority from January 3, 2005 (12 years, 0 days) (retired)	Vitter (House and Senate) Seniority from May 25, 1999^[h] (17 years, 223 days)
115th	January 3, 2017 – January 3, 2019	Bill Cassidy^[C] Seniority from January 3, 2015 (9 years, 313 days) (Incumbent)	Scalise (House) Seniority from May 3, 2008 (16 years, 192 days)	Steve Scalise Seniority from May 3, 2008^[h] (16 years, 192 days) (Incumbent)
116th	January 3, 2019 – January 3, 2021
117th	January 3, 2021 – January 3, 2023
118th	January 3, 2023 – January 3, 2025
119th	January 3, 2025 – present
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)

Maine

Senior members of Maine's congressional delegation (1853–present)
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)
33rd	March 4, 1853 – March 4, 1855	Hannibal Hamlin^[Y]^[C] Seniority from June 8, 1848^[f] (8 years, 214 days) (elected Maine governor)	Hamlin (Senate) Seniority from June 8, 1848 (8 years, 214 days)	Thomas J. D. Fuller Seniority from March 4, 1849 (7 years, 364 days) (retired)
34th	March 4, 1855 – January 7, 1857
34th	January 7, 1857 – March 4, 1857	William P. Fessenden^[Z]^[C] Seniority from February 10, 1854^[j] (10 years, 142 days) (appointed Secretary of the Treasury)	Fuller (House) Seniority from March 4, 1849 (7 years, 364 days)
35th	March 4, 1857 – March 4, 1859		Washburn (House) Seniority from March 4, 1851 (9 years, 303 days)	Israel Washburn Jr. Seniority from March 4, 1851 (9 years, 303 days) (elected Maine governor)
36th	March 4, 1859 – January 1, 1861
36th	January 1, 1861 – March 4, 1861		Fessenden (Senate) Seniority from February 10, 1854 (10 years, 142 days)	Freeman H. Morse^[D] Seniority from March 4, 1857^[d] (3 years, 364 days) (retired)
37th	March 4, 1861 – December 1, 1862			No clear dean^[c]^[q]
37th	December 1, 1862 – March 4, 1863			Samuel C. Fessenden Seniority from March 4, 1861^[i] (1 year, 364 days) (retired)
38th	March 4, 1863 – July 1, 1864			Co-deans: Frederick A. Pike, John H. Rice Seniority from March 4, 1861 (5 years, 364 days) (Rice retired)
38th	July 1, 1864 – March 4, 1865	Lot M. Morrill Seniority from January 17, 1861^[f] (8 years, 45 days) (lost re-election)	Morrill (Senate) Seniority from January 17, 1861 (8 years, 45 days)
39th	March 4, 1865 – March 4, 1867
40th	March 4, 1867 – March 4, 1869			Frederick A. Pike Seniority from March 4, 1861 (7 years, 364 days) (lost renomination)
41st	March 4, 1869 – September 8, 1869	William P. Fessenden^[I] Seniority from March 4, 1865 (4 years, 188 days) (died)	Blaine (House and Senate) Seniority from March 4, 1863 (18 years, 1 day)	James G. Blaine^[AA] Seniority from March 4, 1863 (13 years, 128 days) (appointed to Senate)
41st	September 8, 1869 – March 4, 1871	Hannibal Hamlin^[I]^[AB] Seniority from March 4, 1869 (11 years, 364 days) (retired)
42nd	March 4, 1871 – March 4, 1873
43rd	March 4, 1873 – March 4, 1875
44th	March 4, 1875 – July 10, 1876
44th	July 10, 1876 – March 4, 1877			Eugene Hale Seniority from March 4, 1869 (9 years, 364 days) (lost re-election)
45th	March 4, 1877 – March 4, 1879
46th	March 4, 1879 – March 4, 1881			William P. Frye Seniority from March 4, 1871 (10 years, 13 days) (elected to Senate)
47th	March 4, 1881 – March 5, 1881	James G. Blaine^[C] Seniority from July 10, 1876^[e] (4 years, 238 days) (appointed Secretary of State)
	March 5, 1881 – March 17, 1881	Eugene Hale^[AC]^[C] Seniority from March 4, 1881 (29 years, 364 days) (retired)	Frye (House and Senate) Seniority from March 4, 1871 (40 years, 157 days)
	March 17, 1881 – March 4, 1883			Co-deans: Stephen Lindsey, Thomas Brackett Reed Seniority from March 4, 1877 (5 years, 364 days) (Lindsey retired)
48th	March 4, 1883 – March 4, 1885			Thomas Brackett Reed^[AD] Seniority from March 4, 1877 (22 years, 184 days) (resigned)
49th	March 4, 1885 – March 4, 1887
50th	March 4, 1887 – March 4, 1889
51st	March 4, 1889 – March 4, 1891
52nd	March 4, 1891 – March 4, 1893
53rd	March 4, 1893 – March 4, 1895
54th	March 4, 1895 – March 4, 1897
55th	March 4, 1897 – March 4, 1899
56th	March 4, 1899 – September 4, 1899
56th	September 4, 1899 – March 4, 1901			Charles A. Boutelle Seniority from March 4, 1883 (17 years, 364 days) (resigned)^[17]
57th	March 4, 1901 – March 4, 1903			Edwin C. Burleigh Seniority from June 21, 1897^[h] (13 years, 255 days) (lost re-election)^[18]
58th	March 4, 1903 – March 4, 1905
59th	March 4, 1905 – March 4, 1907
60th	March 4, 1907 – March 4, 1909
61st	March 4, 1909 – March 4, 1911
62nd	March 4, 1911 – August 8, 1911	William P. Frye^[AE]^[C] Seniority from March 18, 1881 (30 years, 143 days) (died)		Frank E. Guernsey Seniority from November 3, 1908^[h] (8 years, 120 days) (ran for Senate)^[19]
62nd	August 8, 1911 – March 4, 1913	Charles F. Johnson Seniority from March 4, 1911 (5 years, 364 days) (lost re-election)	Guernsey (House) Seniority from November 3, 1908 (8 years, 120 days)
63rd	March 4, 1913 – March 4, 1915
64th	March 4, 1915 – March 4, 1917
65th	March 4, 1917 – March 4, 1919	Bert M. Fernald Seniority from September 12, 1916^[n] (9 years, 345 days) (died)	Peters (House) Seniority from September 9, 1913 (8 years, 115 days)	John A. Peters Seniority from September 9, 1913^[h] (8 years, 115 days) (appointed district court judge)
66th	March 4, 1919 – March 4, 1921
67th	March 4, 1921 – January 2, 1922
67th	January 2, 1922 – March 4, 1923		Fernald (Senate) Seniority from September 12, 1916 (9 years, 345 days)	Co-deans: Ira G. Hersey, Wallace H. White Seniority from March 4, 1917 (11 years, 364 days) (Hersey lost renomination)
68th	March 4, 1923 – March 4, 1925
69th	March 4, 1925 – August 23, 1926
69th	August 23, 1926 – March 4, 1927	Frederick Hale Seniority from March 4, 1917 (23 years, 305 days) (retired)	Co-deans: Hale (Senate) Hersey, White (House) Seniority from March 4, 1917 (11 years, 364 days)
70th	March 4, 1927 – March 4, 1929
71st	March 4, 1929 – March 4, 1931		Co-deans: Hale (Senate) White^[W] (House and Senate) Seniority from March 4, 1917 (23 years, 305 days)	Wallace H. White Seniority from March 4, 1917 (13 years, 364 days) (elected to Senate)
72nd	March 4, 1931 – March 4, 1933			Carroll L. Beedy Seniority from March 4, 1921 (13 years, 305 days) (lost re-election)
73rd	March 4, 1933 – January 3, 1935
74th	January 3, 1935 – January 3, 1937			Edward C. Moran Jr. Seniority from March 4, 1933 (3 years, 305 days) (retired)
75th	January 3, 1937 – January 3, 1939			Owen Brewster Seniority from January 3, 1935 (6 years, 0 days) (elected to Senate)
76th	January 3, 1939 – January 3, 1941
77th	January 3, 1941 – January 3, 1943	Wallace H. White^[AF]^[C] Seniority from March 4, 1931 (17 years, 305 days) (retired)	White (House and Senate) Seniority from March 4, 1917 (31 years, 305 days)	James C. Oliver Seniority from January 3, 1937 (6 years, 0 days) (lost renomination)
78th	January 3, 1943 – January 3, 1945			Margaret Chase Smith Seniority from June 3, 1940^[h] (8 years, 214 days) (elected to Senate)
79th	January 3, 1945 – January 3, 1947
80th	January 3, 1947 – January 3, 1949
81st	January 3, 1949 – January 3, 1951	Owen Brewster^[C] Seniority from January 3, 1941 (11 years, 302 days) (resigned)	Brewster (House and Senate) Seniority from January 3, 1935 (17 years, 302 days)	Frank Fellows Seniority from January 3, 1941 (10 years, 236 days) (died)
82nd	January 3, 1951 – August 27, 1951
	August 27, 1951 – December 31, 1952			Robert Hale Seniority from January 3, 1943 (16 years, 0 days) (lost re-election)
	December 31, 1952 – January 3, 1953	Margaret Chase Smith^[C] Seniority from January 3, 1949 (24 years, 0 days) (lost re-election)	Smith (House and Senate) Seniority from June 3, 1940 (32 years, 214 days)
83rd	January 3, 1953 – January 3, 1955
84th	January 3, 1955 – January 3, 1957
85th	January 3, 1957 – January 3, 1959
86th	January 3, 1959 – January 3, 1961			Clifford McIntire Seniority from October 22, 1941^[h] (23 years, 73 days) (ran for Senate)
87th	January 3, 1961 – January 3, 1963
88th	January 3, 1963 – January 3, 1965
89th	January 3, 1965 – January 3, 1967			Stanley R. Tupper Seniority from January 3, 1961 (6 years, 0 days) (retired)
90th	January 3, 1967 – January 3, 1969			William Hathaway Seniority from January 3, 1965 (8 years, 0 days) (elected to Senate)
91st	January 3, 1969 – January 3, 1971
92nd	January 3, 1971 – January 3, 1973
93rd	January 3, 1973 – January 3, 1975	Edmund Muskie Seniority from January 3, 1959 (21 years, 125 days) (appointed Secretary of State)	Muskie (Senate) Seniority from January 3, 1959 (21 years, 125 days)	Peter Kyros Seniority from January 3, 1967 (8 years, 0 days) (lost re-election)
94th	January 3, 1975 – January 3, 1977			William Cohen Seniority from January 3, 1973 (6 years, 0 days) (elected to Senate)
95th	January 3, 1977 – January 3, 1979
96th	January 3, 1979 – May 7, 1980			David F. Emery Seniority from January 3, 1975 (8 years, 0 days) (ran for Senate)
96th	May 7, 1980 – January 3, 1981	William Cohen^[C] Seniority from January 3, 1979 (18 years, 0 days) (retired)	Cohen (House and Senate) Seniority from January 3, 1973 (24 years, 0 days)
97th	January 3, 1981 – January 3, 1983
98th	January 3, 1983 – January 3, 1985			Olympia Snowe Seniority from January 3, 1979 (16 years, 0 days) (elected to Senate)
99th	January 3, 1985 – January 3, 1987
100th	January 3, 1987 – January 3, 1989
101st	January 3, 1989 – January 3, 1991
102nd	January 3, 1991 – January 3, 1993
103rd	January 3, 1993 – January 3, 1995
104th	January 3, 1995 – January 3, 1997			No clear dean^[c]^[r]
105th	January 3, 1997 – January 3, 1999	Olympia Snowe^[C] Seniority from January 3, 1995 (18 years, 0 days) (retired)	Snowe (House and Senate) Seniority from January 3, 1979 (34 years, 0 days)	John Baldacci Seniority from January 3, 1995 (8 years, 0 days) (elected Maine governor)
106th	January 3, 1999 – January 3, 2001
107th	January 3, 2001 – January 3, 2003
108th	January 3, 2003 – January 3, 2005			Tom Allen Seniority from January 3, 1997 (12 years, 0 days) (ran for Senate)
109th	January 3, 2005 – January 3, 2007
110th	January 3, 2007 – January 3, 2009
111th	January 3, 2009 – January 3, 2011			Mike Michaud Seniority from January 3, 2003 (12 years, 0 days) (ran for Maine governor)
112th	January 3, 2011 – January 3, 2013
113th	January 3, 2013 – January 3, 2015	Susan Collins Seniority from January 3, 1997 (27 years, 313 days) (Incumbent)	Collins (Senate) Seniority from January 3, 1997 (27 years, 313 days)
114th	January 3, 2015 – January 3, 2017			Chellie Pingree Seniority from January 3, 2009 (15 years, 313 days) (Incumbent)
115th	January 3, 2017 – January 3, 2019
116th	January 3, 2019 – January 3, 2021
117th	January 3, 2021 – January 3, 2023
118th	January 3, 2023 – January 3, 2025
119th	January 3, 2025 – present
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)

Maryland

Senior members of Maryland's congressional delegation (1863–present)
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)
38th	March 4, 1863 – February 14, 1865	Thomas Holliday Hicks Seniority from December 29, 1862^[e] (2 years, 47 days) (died)	Webster (House) Seniority from March 4, 1859 (6 years, 144 days)	Edwin H. Webster Seniority from March 4, 1859 (6 years, 144 days) (appointed Port of Baltimore customs collector)
38th	February 14, 1865 – March 4, 1865	Reverdy Johnson^[AG]^[K] Seniority from March 4, 1863 (5 years, 128 days) (appointed Minister to the United Kingdom)
39th	March 4, 1865 – July 26, 1865
39th	July 26, 1865 – March 4, 1867		Thomas (House) Seniority from March 4, 1861 (7 years, 364 days)	Francis Thomas^[AG]^[D] Seniority from March 4, 1861 (7 years, 364 days) (retired)
40th	March 4, 1867 – July 10, 1868
40th	July 10, 1868 – March 4, 1869	George Vickers Seniority from March 7, 1868^[f] (4 years, 361 days) (retired)^[20]
41st	March 4, 1869 – March 4, 1871		Co-deans: Archer, Stone (House) Seniority from March 4, 1867 (3 years, 364 days)	Co-deans: Stevenson Archer, Frederick Stone Seniority from March 4, 1867 (3 years, 364 days) (Stone lost re-election)^[21]
42nd	March 4, 1871 – March 4, 1873		Archer (House) Seniority from March 4, 1867 (7 years, 364 days)	Stevenson Archer Seniority from March 4, 1867 (7 years, 364 days) (lost renomination)^[22]
43rd	March 4, 1873 – March 4, 1875	William T. Hamilton^[C] Seniority from March 4, 1869 (5 years, 364 days) (ran for Maryland governor)
44th	March 4, 1875 – March 4, 1877	George R. Dennis Seniority from March 4, 1873 (5 years, 364 days) (retired)	Swann (House) Seniority from March 4, 1869 (9 years, 364 days)	Thomas Swann Seniority from March 4, 1869 (9 years, 364 days) (retired)
45th	March 4, 1877 – March 4, 1879
46th	March 4, 1879 – March 4, 1881	William P. Whyte^[K] Seniority from March 4, 1875 (5 years, 364 days) (retired)	Whyte (Senate) Seniority from March 4, 1875^[d] (5 years, 364 days)	Eli Jones Henkle Seniority from March 4, 1875 (5 years, 364 days) (lost re-election)^[23]
47th	March 4, 1881 – March 4, 1883	James Black Groome Seniority from March 4, 1879 (5 years, 364 days) (retired)	McLane (House) Seniority from March 4, 1879^[d] (3 years, 364 days)	Robert M. McLane^[D] Seniority from March 4, 1879^[d] (3 years, 364 days) (retired)
48th	March 4, 1883 – March 4, 1885		Co-deans: Groome (Senate) Talbott (House) Seniority from March 4, 1879 (5 years, 364 days)	J. Frederick C. Talbott Seniority from March 4, 1879 (5 years, 364 days) (retired)
49th	March 4, 1885 – March 4, 1887	Arthur P. Gorman^[AH] Seniority from March 4, 1881 (17 years, 364 days) (lost re-election)	Gorman (Senate) Seniority from March 4, 1881 (17 years, 364 days)	Co-deans: John Van Lear Findlay (D), Louis E. McComas (R) Seniority from March 4, 1883 (3 years, 364 days) (Findlay retired)
50th	March 4, 1887 – March 4, 1889			Louis E. McComas Seniority from March 4, 1883 (7 years, 364 days) (lost re-election)^[24]
51st	March 4, 1889 – March 4, 1891
52nd	March 4, 1891 – March 4, 1893			Harry W. Rusk Seniority from November 2, 1886^[h] (10 years, 121 days) (retired)
53rd	March 4, 1893 – March 4, 1895
54th	March 4, 1895 – March 4, 1897
55th	March 4, 1897 – March 4, 1899			William Benjamin Baker Seniority from March 4, 1895 (5 years, 364 days) (retired)
56th	March 4, 1899 – March 4, 1901	George L. Wellington^[C] Seniority from March 4, 1897 (5 years, 364 days) (retired)	Co-deans: Wellington (House and Senate) Baker (House) Seniority from March 4, 1895 (5 years, 364 days)
57th	March 4, 1901 – March 4, 1903		Wellington (House and Senate) Seniority from March 4, 1895 (7 years, 364 days)	Sydney E. Mudd I^[D] Seniority from March 4, 1897 (13 years, 364 days) (retired)
58th	March 4, 1903 – March 4, 1905	Louis E. McComas^[C] Seniority from March 4, 1899 (5 years, 364 days) (retired)	Mudd (House) Seniority from March 4, 1897 (13 years, 364 days)
59th	March 4, 1905 – June 4, 1906	Arthur P. Gorman^[I]^[AI] Seniority from March 4, 1903 (3 years, 92 days) (died)
59th	June 4, 1906 – March 4, 1907	Isidor Rayner^[C] Seniority from March 4, 1905 (7 years, 266 days) (died)
60th	March 4, 1907 – March 4, 1909
61st	March 4, 1909 – March 4, 1911
62nd	March 4, 1911 – November 25, 1912		Talbott^[H] (House) Seniority from March 4, 1903 (15 years, 215 days)	J. Frederick C. Talbott^[AJ] Seniority from March 4, 1903 (15 years, 215 days) (died)
62nd	November 25, 1912 – March 4, 1913	John W. Smith^[C] Seniority from March 25, 1908^[f] (12 years, 343 days) (lost re-election)
63rd	March 4, 1913 – March 4, 1915
64th	March 4, 1915 – March 4, 1917
65th	March 4, 1917 – October 5, 1918
65th	October 5, 1918 – March 4, 1919		Smith (Senate) Seniority from March 25, 1908 (12 years, 343 days)	J. Charles Linthicum Seniority from March 4, 1911 (21 years, 215 days) (died)
66th	March 4, 1919 – March 4, 1921
67th	March 4, 1921 – March 4, 1923	Joseph I. France Seniority from March 4, 1917 (5 years, 364 days) (lost re-election)	Linthicum (House) Seniority from March 4, 1911 (21 years, 215 days)
68th	March 4, 1923 – March 4, 1925	Ovington Weller Seniority from March 4, 1921 (5 years, 364 days) (lost re-election)
69th	March 4, 1925 – March 4, 1927
70th	March 4, 1927 – March 4, 1929	William Cabell Bruce Seniority from March 4, 1923 (5 years, 364 days) (lost re-election)
71st	March 4, 1929 – March 4, 1931	Millard Tydings^[C] Seniority from March 4, 1927 (23 years, 305 days) (lost re-election)
72nd	March 4, 1931 – October 5, 1932
72nd	October 5, 1932 – March 4, 1933		Goldsborough (House) Seniority from March 4, 1921 (18 years, 32 days)	Thomas A. Goldsborough Seniority from March 4, 1921 (18 years, 32 days) (appointed district court judge)
73rd	March 4, 1933 – January 3, 1935
74th	January 3, 1935 – January 3, 1937
75th	January 3, 1937 – January 3, 1939
76th	January 3, 1939 – April 5, 1939
76th	April 5, 1939 – January 3, 1941		Tydings (House and Senate) Seniority from March 4, 1923 (27 years, 305 days)	William Purington Cole Jr.^[D] Seniority from March 4, 1931 (11 years, 236 days) (appointed U.S. Customs Court judge)
77th	January 3, 1941 – October 26, 1942
77th	October 26, 1942 – January 3, 1943			Thomas D'Alesandro Jr. Seniority from January 3, 1939 (8 years, 133 days) (elected Baltimore mayor)
78th	January 3, 1943 – January 3, 1945
79th	January 3, 1945 – January 3, 1947
80th	January 3, 1947 – May 16, 1947
80th	May 16, 1947 – January 3, 1949			Lansdale G. Sasscer Seniority from February 3, 1939^[h] (13 years, 335 days) (ran for Senate)
81st	January 3, 1949 – January 3, 1951
82nd	January 3, 1951 – January 3, 1953	Herbert O'Conor Seniority from January 3, 1947 (6 years, 0 days) (retired)	Sasscer (House) Seniority from February 3, 1939 (13 years, 335 days)
83rd	January 3, 1953 – January 3, 1955	John Marshall Butler Seniority from January 3, 1951 (12 years, 0 days) (retired)	Beall (House and Senate) Seniority from January 3, 1943 (22 years, 0 days)	George H. Fallon Seniority from January 3, 1945 (26 years, 0 days) (lost renomination)^[25]
84th	January 3, 1955 – January 3, 1957
85th	January 3, 1957 – January 3, 1959
86th	January 3, 1959 – January 3, 1961
87th	January 3, 1961 – January 3, 1963
88th	January 3, 1963 – January 3, 1965	J. Glenn Beall^[C] Seniority from January 3, 1953 (12 years, 0 days) (lost re-election)
89th	January 3, 1965 – January 3, 1967	Daniel Brewster^[C] Seniority from January 3, 1963 (6 years, 0 days) (lost re-election)	Fallon (House) Seniority from January 3, 1945 (26 years, 0 days)
90th	January 3, 1967 – January 3, 1969
91st	January 3, 1969 – January 3, 1971	Joseph Tydings Seniority from January 3, 1965 (6 years, 0 days) (lost re-election)
92nd	January 3, 1971 – January 3, 1973	Charles Mathias^[C] Seniority from January 3, 1969 (18 years, 0 days) (retired)	Garmatz (House) Seniority from July 15, 1947 (25 years, 172 days)	Edward Garmatz Seniority from July 15, 1947^[h] (25 years, 172 days) (retired)
93rd	January 3, 1973 – January 3, 1975		Mathias (House and Senate) Seniority from January 3, 1961 (26 years, 0 days)	Clarence Long Seniority from January 3, 1963 (22 years, 0 days) (lost re-election)
94th	January 3, 1975 – January 3, 1977
95th	January 3, 1977 – January 3, 1979
96th	January 3, 1979 – January 3, 1981
97th	January 3, 1981 – January 3, 1983
98th	January 3, 1983 – January 3, 1985
99th	January 3, 1985 – January 3, 1987			Parren Mitchell Seniority from January 3, 1971 (16 years, 0 days) (ran for Maryland lieutenant governor)
100th	January 3, 1987 – January 3, 1989	Paul Sarbanes^[C] Seniority from January 3, 1977 (30 years, 0 days) (retired)	Sarbanes (House and Senate) Seniority from January 3, 1971 (36 years, 0 days)	Beverly Byron Seniority from January 3, 1979 (14 years, 0 days) (lost renomination)^[26]
101st	January 3, 1989 – January 3, 1991
102nd	January 3, 1991 – January 3, 1993
103rd	January 3, 1993 – January 3, 1995			Steny Hoyer Seniority from May 19, 1981^[h] (43 years, 176 days) (Incumbent)
104th	January 3, 1995 – January 3, 1997
105th	January 3, 1997 – January 3, 1999
106th	January 3, 1999 – January 3, 2001
107th	January 3, 2001 – January 3, 2003
108th	January 3, 2003 – January 3, 2005
109th	January 3, 2005 – January 3, 2007
110th	January 3, 2007 – January 3, 2009	Barbara Mikulski^[C] Seniority from January 3, 1987 (30 years, 0 days) (retired)	Mikulski (House and Senate) Seniority from January 3, 1977 (40 years, 0 days)
111th	January 3, 2009 – January 3, 2011
112th	January 3, 2011 – January 3, 2013
113th	January 3, 2013 – January 3, 2015
114th	January 3, 2015 – January 3, 2017
115th	January 3, 2017 – January 3, 2019	Ben Cardin^[C] Seniority from January 3, 2007 (18 years, 0 days) (retired)	Hoyer (House) Seniority from May 19, 1981 (43 years, 176 days)
116th	January 3, 2019 – January 3, 2021
117th	January 3, 2021 – January 3, 2023
118th	January 3, 2023 – January 3, 2025
119th	January 3, 2025 – present	Chris Van Hollen^[C] Seniority from January 3, 2017 (7 years, 313 days) (Incumbent)
Congress	Dates	Senior senator (Seniority and tenure) (Cause of departure)	Delegation dean (Combined seniority and tenure)	House dean (Seniority and tenure) (Cause of departure)

References

^ "BLEDSOE, Jesse (1776 – 1836)". Biographical Directory of the United States Congress. Retrieved March 14, 2024.
^ "WALKER, George (1763 – 1819)". Biographical Directory of the United States Congress. Retrieved March 14, 2024.
^ ^a ^b ^c ^d ^e "Chapter 7 § 2. Seniority and Derivative Rights". Deschler's Precedents, Volume 2 (PDF). U.S. Government Publishing Office. January 1, 1994. p. 670. Retrieved November 5, 2023.
^ "BURNETT, Henry Cornelius (1825 – 1866)". Biographical Directory of the United States Congress. Retrieved March 21, 2024.
^ "TRIMBLE, Lawrence Strother (1825 – 1904)". Biographical Directory of the United States Congress. Retrieved March 27, 2024.
^ "WILLIS, Albert Shelby (1843 – 1897)". Biographical Directory of the United States Congress. Retrieved March 27, 2024.
^ "MCCREARY, James Bennett (1838 – 1918)". Biographical Directory of the United States Congress. Retrieved March 27, 2024.
^ "DEBOE, William Joseph (1849 – 1927)". Biographical Directory of the United States Congress. Retrieved March 19, 2024.
^ "RHEA, John Stockdale (1855 – 1924)". Biographical Directory of the United States Congress. Retrieved March 24, 2024.
^ "BLACKBURN, Joseph Clay Stiles (1838 – 1918)". Biographical Directory of the United States Congress. Retrieved March 19, 2024.
^ "VINSON, Frederick Moore (1890 – 1953)". Biographical Directory of the United States Congress. Retrieved March 24, 2024.
^ "MOREY, Frank (1840 – 1890)". Biographical Directory of the United States Congress. Retrieved June 2, 2024.
^ "DARRALL, Chester Bidwell (1842 – 1908)". Biographical Directory of the United States Congress. Retrieved June 2, 2024.
^ "EUSTIS, James Biddle (1834 – 1899)". Biographical Directory of the United States. Retrieved June 1, 2024.
^ "RANSDELL, Joseph Eugene (1858 – 1954)". Biographical Directory of the United States Congress. Retrieved May 30, 2024.
^ "BROUSSARD, Edwin Sidney (1874 – 1934)". Biographical Directory of the United States Congress. Retrieved May 30, 2024.
^ "BOUTELLE, Charles Addison (1839 – 1901)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.
^ "BURLEIGH, Edwin Chick (1843 – 1916)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.
^ "GUERNSEY, Frank Edward (1866 – 1927)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.
^ "VICKERS, George (1801 – 1879)". Biographical Directory of the United States Congress. Retrieved July 1, 2024.
^ "STONE, Frederick (1820 – 1899)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.
^ "ARCHER, Stevenson (1827 – 1898)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.
^ "HENKLE, Eli Jones (1828 – 1893)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.
^ "MCCOMAS, Louis Emory (1846 – 1907)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.
^ "FALLON, George Hyde (1902 – 1980)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.
^ "BYRON, Beverly Barton Butcher (1932 – )". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

Footnotes (positional)

^ President pro tempore from 1803 to 1804; Dean of the Senate from 1803 to 1805
^ ^a ^b Elected as Anti-Administration until 1795
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at Senator who previously served in the House of Representatives
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Previously served non-consecutive term(s) in the House
^ President pro tempore from February to November 1811
^ Speaker of the House from 1811 to 1814, 1815 to 1820, 1823 to 1825
^ ^a ^b Elected as Democratic-Republican until 1825
^ ^a ^b ^c Second time
^ ^a ^b ^c ^d ^e ^f ^g Second time; previously served non-consecutive term(s) in the Senate
^ Elected as National Republican until 1837
^ ^a ^b ^c ^d ^e ^f Previously served non-consecutive term(s) in the Senate
^ Representative who previously served as a senator
^ Speaker of the House from 1841 to 1843
^ Dean of the House from 1849 to 1855; Speaker of the House and House Democratic Leader from 1851 to 1855
^ Elected as Unionist until 1867
^ Senate Democratic Leader from 1873 to 1877
^ Senate Democratic Leader from 1885 to 1890
^ ^a ^b Speaker of the House and House Democratic Leader from 1883 to 1889
^ Senate Democratic Leader from 1906 to 1907
^ Senate Democratic Leader from 1937 to 1949
^ Dean of the House since 2022
^ Senate Republican Leader from 2007 to 2025
^ ^a ^b ^c ^d as junior senator
^ President pro tempore and Dean of the Senate from 1971 to 1972
^ Democrat until 1856
^ Opposition until 1860
^ Speaker of the House and House Republican Leader from 1869 to 1875
^ Former Vice President (ex officio President of the Senate)
^ Senate Republican Leader (de facto) from 1908 to 1911
^ Speaker of the House from 1889 to 1891, 1895 to 1899; House Republican Leader from 1889 to 1899
^ President pro tempore from 1896 to 1911
^ Senate Republican Leader from 1944 to 1949
^ ^a ^b Unconditional Unionist until 1866
^ Senate Democratic Leader from 1890 to 1898
^ Senate Democratic Leader from 1903 to 1906
^ Second time; previously served non-consecutive term(s) in the House

Footnotes (seniority)

^ Seniority over John Edwards due to past service as a member of the House of Representatives from Virginia
^ Alexander D. Orr served as Kentucky's sole representative (2nd district) until Christopher Greenup was sworn in on November 9
^ ^a ^b ^c Preceding elections involved turnover of all sitting incumbents; incoming officeholders share a seniority date with no distinguishing aspects
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o Shares seniority date with other officeholder(s); credited as sole dean by past non-consecutive terms in Congress
^ ^a ^b ^c ^d ^e ^f ^g Senator appointed to fill intra-term vacancy; seniority calculated from date of appointment
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o Senator elected by state legislature intra-term prior to ratification of Seventeenth Amendment; seniority calculated from election date (if different from date the seat was filled)
^ Seniority over Isham Talbot due to past service as a member of the House of Representatives
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x Representative elected to fill vacancy; seniority calculated from date of special election (if different from date the seat was filled)^[3] Cite error: The named reference "housevacancy" was defined multiple times with different content (see the help page).
^ ^a ^b ^c ^d ^e ^f ^g Shares seniority date with more than two other Representatives (thus unable to count as co-deans); credited as sole dean due to surname coming first alphabetically
^ ^a ^b Elected late
^ Served more prior time (92 days) in the House than John Calhoon (2 days)
^ ^a ^b Seated late by virtue of holding other political, governmental, or judicial office
^ Served more prior non-consecutive terms (two full, one partial) than Virgil Chapman (two)
^ ^a ^b ^c ^d Senator elected to fill intra-term vacancy after ratification of the Seventeenth Amendment; seniority calculated from date the individual assumed office
^ De jure; not seated until December 10, 1877 due to contested credentials; seniority backdated upon swearing-in^[14]
^ De facto senior senator from March 4 to December 10, 1877, when James B. Eustis received retroactive seniority
^ All newly-seated members shared seniority until T. A. D. Fessenden was elected on December 1, 1862
^ John Baldacci shared seniority with James B. Longley Jr. until January 3, 1997

Bibliography

Biographical Directory of the United States Congress (1774 – 2005) (PDF), Washington, D.C.: U.S. Government Printing Office, 2005, retrieved November 12, 2023

[10] "BLEDSOE, Jesse (1776 – 1836)". Biographical Directory of the United States Congress. Retrieved March 14, 2024.

[12] "WALKER, George (1763 – 1819)". Biographical Directory of the United States Congress. Retrieved March 14, 2024.

[deschlersseniority-16] "Chapter 7 § 2. Seniority and Derivative Rights". Deschler's Precedents, Volume 2 (PDF). U.S. Government Publishing Office. January 1, 1994. p. 670. Retrieved November 5, 2023.

[29] "BURNETT, Henry Cornelius (1825 – 1866)". Biographical Directory of the United States Congress. Retrieved March 21, 2024.

[31] "TRIMBLE, Lawrence Strother (1825 – 1904)". Biographical Directory of the United States Congress. Retrieved March 27, 2024.

[35] "WILLIS, Albert Shelby (1843 – 1897)". Biographical Directory of the United States Congress. Retrieved March 27, 2024.

[36] "MCCREARY, James Bennett (1838 – 1918)". Biographical Directory of the United States Congress. Retrieved March 27, 2024.

[37] "DEBOE, William Joseph (1849 – 1927)". Biographical Directory of the United States Congress. Retrieved March 19, 2024.

[38] "RHEA, John Stockdale (1855 – 1924)". Biographical Directory of the United States Congress. Retrieved March 24, 2024.

[40] "BLACKBURN, Joseph Clay Stiles (1838 – 1918)". Biographical Directory of the United States Congress. Retrieved March 19, 2024.

[44] "VINSON, Frederick Moore (1890 – 1953)". Biographical Directory of the United States Congress. Retrieved March 24, 2024.

[48] "MOREY, Frank (1840 – 1890)". Biographical Directory of the United States Congress. Retrieved June 2, 2024.

[49] "DARRALL, Chester Bidwell (1842 – 1908)". Biographical Directory of the United States Congress. Retrieved June 2, 2024.

[50] "EUSTIS, James Biddle (1834 – 1899)". Biographical Directory of the United States. Retrieved June 1, 2024.

[54] "RANSDELL, Joseph Eugene (1858 – 1954)". Biographical Directory of the United States Congress. Retrieved May 30, 2024.

[55] "BROUSSARD, Edwin Sidney (1874 – 1934)". Biographical Directory of the United States Congress. Retrieved May 30, 2024.

[64] "BOUTELLE, Charles Addison (1839 – 1901)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.

[65] "BURLEIGH, Edwin Chick (1843 – 1916)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.

[67] "GUERNSEY, Frank Edward (1866 – 1927)". Biographical Directory of the United States Congress. Retrieved July 5, 2024.

[71] "VICKERS, George (1801 – 1879)". Biographical Directory of the United States Congress. Retrieved July 1, 2024.

[72] "STONE, Frederick (1820 – 1899)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

[73] "ARCHER, Stevenson (1827 – 1898)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

[74] "HENKLE, Eli Jones (1828 – 1893)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

[76] "MCCOMAS, Louis Emory (1846 – 1907)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

[79] "FALLON, George Hyde (1902 – 1980)". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

[80] "BYRON, Beverly Barton Butcher (1932 – )". Biographical Directory of the United States Congress. Retrieved July 2, 2024.

[1] President pro tempore from 1803 to 1804; Dean of the Senate from 1803 to 1805

[aa-2] Elected as Anti-Administration until 1795

[formerhouse-3] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x ^y ^z ^aa ^ab ^ac ^ad ^ae ^af ^ag ^ah ^ai ^aj ^ak ^al ^am ^an ^ao ^ap ^aq ^ar ^as ^at Senator who previously served in the House of Representatives

[housenonconsecutive-7] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Previously served non-consecutive term(s) in the House

[9] President pro tempore from February to November 1811

[15] Speaker of the House from 1811 to 1814, 1815 to 1820, 1823 to 1825

[dr-18] Elected as Democratic-Republican until 1825

[second-19] Second time

[secondsenate-21] ^ ^a ^b ^c ^d ^e ^f ^g Second time; previously served non-consecutive term(s) in the Senate

[22] Elected as National Republican until 1837

[senatenonconsecutive-23] ^ ^a ^b ^c ^d ^e ^f Previously served non-consecutive term(s) in the Senate

[formersenate-25] Representative who previously served as a senator

[white-27] Speaker of the House from 1841 to 1843

[28] Dean of the House from 1849 to 1855; Speaker of the House and House Democratic Leader from 1851 to 1855

[30] Elected as Unionist until 1867

[32] Senate Democratic Leader from 1873 to 1877

[33] Senate Democratic Leader from 1885 to 1890

[carlisle-34] Speaker of the House and House Democratic Leader from 1883 to 1889

[39] Senate Democratic Leader from 1906 to 1907

[42] Senate Democratic Leader from 1937 to 1949

[46] Dean of the House since 2022

[47] Senate Republican Leader from 2007 to 2025

[jr-52] s junior senator

[56] President pro tempore and Dean of the Senate from 1971 to 1972

[57] Democrat until 1856

[58] Opposition until 1860

[60] Speaker of the House and House Republican Leader from 1869 to 1875

[formervp-61] Former Vice President (ex officio President of the Senate)

[62] Senate Republican Leader (de facto) from 1908 to 1911

[63] Speaker of the House from 1889 to 1891, 1895 to 1899; House Republican Leader from 1889 to 1899

[66] President pro tempore from 1896 to 1911

[68] Senate Republican Leader from 1944 to 1949

[uu-70] Unconditional Unionist until 1866

[75] Senate Democratic Leader from 1890 to 1898

[77] Senate Democratic Leader from 1903 to 1906

[secondhouse-78] Second time; previously served non-consecutive term(s) in the House

[4] Seniority over John Edwards due to past service as a member of the House of Representatives from Virginia

[5] Alexander D. Orr served as Kentucky's sole representative (2nd district) until Christopher Greenup was sworn in on November 9

[turnover-6] Preceding elections involved turnover of all sitting incumbents; incoming officeholders share a seniority date with no distinguishing aspects

[past-8] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o Shares seniority date with other officeholder(s); credited as sole dean by past non-consecutive terms in Congress

[appoint-11] ^ ^a ^b ^c ^d ^e ^f ^g Senator appointed to fill intra-term vacancy; seniority calculated from date of appointment

[senatorlegis-13] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o Senator elected by state legislature intra-term prior to ratification of Seventeenth Amendment; seniority calculated from election date (if different from date the seat was filled)

[14] Seniority over Isham Talbot due to past service as a member of the House of Representatives

[housevacancy-17] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r ^s ^t ^u ^v ^w ^x Representative elected to fill vacancy; seniority calculated from date of special election (if different from date the seat was filled)^[3] Cite error: The named reference "housevacancy" was defined multiple times with different content (see the help page).

[codeanex-20] ^ ^a ^b ^c ^d ^e ^f ^g Shares seniority date with more than two other Representatives (thus unable to count as co-deans); credited as sole dean due to surname coming first alphabetically

[lateelection-24] Elected late

[26] Served more prior time (92 days) in the House than John Calhoon (2 days)

[seatedlateoffice-41] Seated late by virtue of holding other political, governmental, or judicial office

[43] Served more prior non-consecutive terms (two full, one partial) than Virgil Chapman (two)

[senatevacancy-45] Senator elected to fill intra-term vacancy after ratification of the Seventeenth Amendment; seniority calculated from date the individual assumed office

[51] De jure; not seated until December 10, 1877 due to contested credentials; seniority backdated upon swearing-in^[14]

[53] De facto senior senator from March 4 to December 10, 1877, when James B. Eustis received retroactive seniority

[59] All newly-seated members shared seniority until T. A. D. Fessenden was elected on December 1, 1862

[69] John Baldacci shared seniority with James B. Longley Jr. until January 3, 1997

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