Machinist and toolmaker, St. Louis, 1898-1902. Superintendent inventions Burroughs Adding Machine Company, Detroit, 1903-1910. Chief engineer Hudson Motor Car Company, 1910-1912.
Vice president engineering, Packard Motor Car corporation since 1912. Commissioned major United States Signal Corps, 1917. Lieutenant colonel, 1918.
Colonel S.O.R.C., 1919. Built experimental station at McCook Field, later in change airplane engineer department, Dayton, O. Appointed chief Airplane Engineering Division, Bureau Aircraft Production, 1918, title of chief of engineering.
Member Joint Army and Navy Technology Aircraft Board, 1918. Co-designer of Liberty Aircraft Engine. Director American Standards Association to representative Auto Manufacturers Association.
Born February 10, 1880