"US soldier" . "John Trout Greble (19 January 1834, Philadelphia \u2013 10 June 1861, Virginia) was a soldier in the United States Army. He was killed at the battle of Big Bethel, and was the first graduate of the United States Military Academy to be killed in the American Civil War."@en . . . "1834-01-19Z"^^ . "John Trout Greble"@en . "1834Z"^^ . "Greble, John Trout"@en . "1861-06-10Z"^^ . "1861Z"^^ .