THOMAS LINCOLN CASEY - (1831-1896) - Army Engineer, born Madison Barracks, Sackett's Harbor, N.Y. Graduated West Point (1859), assigned to fortification and river and harbor construction and in command of engineers on Puget Sound (1859-61). Served during Civil War as staff engineer in Department of Virginia, constructing fortifications on Maine coast and with North Atlantic squadron. Subsequently employed in fortification construciton, studied torpedo construction in Europe (1873), completed Washington national monument (1884). Apppointed brigadier-general and Chief of Engineers (1888-95). Erected Library of Congress building.