Physical science master Wesleyan College, Stanstead, Quebec, 1877-1879. Head department mathematics and physics, high school, Washington, 1885-1887. Professor physics, Swarthmore College, 1887-1889.
Vice president National Switch & Signal Company, 1859-1891. President National Drying Company, 1891-1893. Scientific assistant to Colonel Waring, commissioner street cleaning, New York, 1895-1896.
Manager Automatic Banjo Company, New York, 1896-1899. Manager Industrial Water Company, 1899-1902. Consultant practice; engineer water service G.N. Railway, 1912-1919, and of Commerce.,M.&St.P. Railway, since 1919.
Delegate to International Congress of Electricians, Philadelphia, 1884. John Scott Legacy Medal, Franklin Institute, for invention of the parabolic semaphore, 1889. Home: Chicago, Ill.