Successively chemist, surveyor, engineer, chief engineer Compania Minera de Penoles, Durango, Mexico, 1906-1911. Assistant manager Summit Copper Company, Globe, Arizona, 1911. Examining engineer Penoles Exploration Company, Mexico, 1911-1914.
Manager Bonanza Mines, Ltd., Nicaragua, 1914. Assistant general superintendent Ojuela Mines, Durango, Mexico, 1915, general superintendent, 1916-1917. Assistant general manager Mapimi Unit of Ojuela Mines, including lead smelter, arsenic plant, power plant and railway, 1917-1918.
General superintendent, subsidiaries of America Metal Company (9 metal mines, 2 coal mines), Monterrey, Mexico, 1918-1921. General manager San Francisco Mines of Mexico, Ltd., San Francisco del Oro, Mexico, 1921-1923. Construction engineering San Francisco Mines of Mexico and general consulting practice, New York, 1923-1924.
General manager Potosi Mining Company and Calera Mining Company, Chihuahua, Mexico, 1924-1925. Consultant practice Mexico, United States, Wales, Greece, Venezuela, Australia, etc., since 1925.
Born July 10, 1884