Engineer Copper Range Cons. Mines Company, 1905; engineer, mine superintendent Mexico Cons. Mining and Smelting Company, 1906-1911, Guanajuato Development Company, 1912.
Chief engineer Moctezuma Copper Company, 1913-1916. Assistant manager Utah Minerals Concentrating Company, 1917. Mine foreman United Verde Extension Mining Company, 1918.
General superintendent Prince Cons. Mining and Smelting Company, 1918-1922. Field engineer Mining Corporation Canada, Ltd., 1923-1925.
Assistant to director United States Bureau Mines, 1926-1940. Senior mining engineer United States Bureau Mines, College Park, Maryland., 1940-1942. Chief Tucson div., 1942-1949, chief minerals division, Washington, 1949-1950, special assistant to the director since 1951.
Minerals advisor Military Government, Germany, 1945.
Born June 9, 1882