Assistant editor, 1903-1906, assistant secretary, editor and assistant treasurer, 1906-1911, secretary, editor and assistant treasurer, 1911-1913, American Institute Mining Engineers. Vice president Johnson Electric Smelting Company, New York, 1914-1915. Treasurer Federal Export Corporation, Federal Shipping Company, 1916.
Supervising engineer of tests, Ordnance Department, United States of America, New York District, 1918-1920. Secretary, trustee Engineers Club, New York, since 1909. Treasurer, director, United Engineering Society, since 1910.
Treasurer Engineering Foundation, since 1916. Assistant treasurer Military Engineering Committee, New York, 1917.