ELLIOT, George Henry, military engineer, born in Lowell, Massachusetts, 31 March 1831. He was graduated at the U. S. military academy in 1855 as a lieutenant of artillery, served on the Texas frontier, and entered the engineer corps in 1857. He was engaged in constructing the works on Alcatraz island, San Francisco harbor, and other fortifications on the Pacific coast till 1870, was promoted major on 3 March 1867, chief engineer of the Washington aqueduct in 1870'1, engineer secretary of the Lighthouse board, and in 1873 went to Europe to examine lighthouse systems there, He became assistant to the chief of engineers at Washington in 1884, and was advanced to the grade of lieutenant colonel on 8 August 1882. He superintended the improvement of Connecticut River in 1882'3, and in 1883'7 harbor improvements at Nantucket, Newport, Providence, New Bedford, and other places on the coast of New England. He published "Lighthouse Systems in Europe" (1874), and "The Presidio of San Francisco" (1874).