James Wear "Bug" Holliday (February 8, 1867 – February 15, 1910) was an American center fielder in Major League Baseball for ten seasons, from 1889 through 1898, plus the 1885 World Series. He holds the distinction of being the first player to make his major league debut in post-season play, with the Chicago White Stockings in 1885. He played the rest of his career with the Cincinnati Reds, both when they were in the American Association and in the National League. He twice led the league in home runs, and was among the leaders in various other offensive categories throughout his career. After his playing career was over, he was an umpire for one season.
Holliday was born in St. Louis, Missouri, and became the first player in major league history to make his debut in the post-season when he was called up, at the age of 18, by the Chicago White Stockings when they needed another outfielder after Game 4 of the 1885 World Series. He played in one game, and had no hits in four at bats. The distinction has since been matched by Mark Kiger, who played in the 2006 American League Championship Series for the Oakland Athletics as a defensive replacement, and Raúl Mondesí, pinch-hitting for Luke Hochevar in Game 3 of the 2015 World Series for the Kansas City Royals.
James Holliday (January 19, 1818 – May 16, 1851) was an American lawyer.
Born in Wayne Township, Mifflin County, Pennsylvania, Holliday studied law and was admitted to the Pennsylvania bar. In 1843, Holliday moved to Milwaukee, Wisconsin Territory and practiced law. In 1847-1848, he served in the Wisconsin Territorial House of Representatives of the Wisconsin Territorial Legislature and help prepared the second Wisconsin Constitutional Convention of 1847. Holliday died suddenly in Milwaukee during a court session of a heart attack.