John Alexander Low Waddell
John Alexander Low Waddell (1854 – March 3, 1938, often shortened to J.A.L. Waddell and sometimes known as John Alexander Waddell) was an American civil engineer and prolific bridge designer, with more than a thousand structures to his credit in the United States, Canada, as well as Mexico, Russia, China, Japan, and New Zealand. Waddell’s work set standards for elevated railroad systems and helped develop materials suitable for large span bridges. His most important contribution was the development of the steam-powered high-lift bridge. His design was first used in 1893 for Chicago's South Halsted Street Lift-Bridge over the Chicago River; he went on to design more than 100 other movable bridges, and the company he founded continues to make movable bridges of various types. Waddell was a widely respected writer on bridge design, and an advocate of quality training of engineers. Many of Waddell's surviving bridges are now considered historic landmarks.
One of his most notable works is the ASB Bridge in Kansas City Missouri. It is only one of two of this design ever built, and is in use as a railroad bridge for the BNSF.
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John Alexander (Presbyterian minister)
John Alexander (30 September 1686 – 1 November 1743) was an Irish Presbyterian minister.
Life
He was a native of Ulster, but connected with the Scottish noble family of the Alexanders, earls of Stirling, being the grandson of the first earl. He was educated at Glasgow, and settled in England. Wilson identifies him with the John Alexander who was a pupil of Isaac Noble and Congregationalist minister at Gloucester 1712–18. He was Presbyterian minister at Stratford-on-Avon, where he educated students for the ministry.
He afterwards moved to Dublin, where he was installed minister of Plunket Street Presbyterian congregation on 15 November 1730. He was moderator of the General Synod of Ulster, 1734, and died in Dublin on 1 November 1743 and was buried there. His family moved to Birmingham.
Works
He was a linguist and patristic scholar; he published The Primitive Doctrine of Christ's Divinity … in an Essay on Irenæus … 1727.
Family
He married Hannah Higgs (1704/5–1768), daughter of Rev. John Higgs of Evesham, on 8 August 1732. He left two daughters Mary (1734), Hannah (1742) and two sons, John and Benjamin (1737–1768): the latter, was a doctor of medicine, and translated J. B. Morgagni's De Sedibus (The Seats and Causes of Disease, investigated by Anatomy, 1769).
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