. . "United StatesArmygeneral" . . . . . "Hains, Peter Conover"@en . "Peter Conover Hains (July 6, 1840 \u2013 November 7, 1921) was a major general in the United States Army, and a veteran of the American Civil War, Spanish-American War, and the First World War. He is best known for his engineering efforts, such as the creation of the Tidal Basin in Washington, D.C., and for laying out the Panama Canal."@en . . . "1921-11-07Z"^^ . . "Union" . "1861Z"^^ . "1840-07-06Z"^^ . "1921Z"^^ . . . . "1904Z"^^ . . "1840Z"^^ . . . "Peter Conover Hains"@en . .