"1874Z"^^ . "Chief Signal Officer, U.S. Army" . . . "U.S. Signal Corps" . . "1940-03-07Z"^^ . . . "Scriven, George Percival"@en . "1940Z"^^ . "1854-02-21Z"^^ . "1854Z"^^ . . . . "George Percival Scriven"@en . "United States of America" . "George Percival Scriven was the seventh Chief Signal Officer of the United States Army (1913\u20131917). In this position he commanded the Aeronautical Division (1913\u20131914),and later the Aviation Section (1914\u20131917) of U.S. Signal Corps, the forerunner of the United States Air Force.Scriven was first Chairman of the National Advisory Committee for Aeronautics (1915\u20131916), the forerunner of NASA."@en . . "1917Z"^^ . . .