Carlton James), Amory Vivion (United States of America), Van Cortlandt Stoutenburgh, Priscilla Alden. Inspector tenements, New York Health Department, 1877-1878. Judge, municipal, competitions, 1878-1880.
Sanitary engineer of health department, New York, 1880-1881. Engineering expert on water supply, 10th Census, 1881. General manager American Photo Litho.
Company, 1881-1882; secretary, auditor Westcott Express Company, 1884-1887. Editor and a proprietor University Magazine, 1890-1894. Assistant chemist, and inspector foods, health department, 1896-1898.
Active for 4 years in organization of milk interests of New York. On technical staff. department taxes and assessments, New York, 1898-1902. Assistant engineer topographical bureau, Borough of Queens, New York, 1902-1910, engineer in charge, 1910.
Commissioner parks, Borough of Queens, New York, 1911-1914. Author of 1st bill to license professional engrs. Appointed member of New York State Board of Licensing for Professional Engineers, term 1921-1930 (chairman 1925).