Assistant to vice president, later assistant to president Crane Company, Chicago, 1903-1914. Public Washington Herald, 1919-1920. Director Division Foreign Cable News Service, Committee on Public Information, 1917-1919.
Adviser American Delegation, Peace Conference, Paris, 1919. Delegate to International Conference on Elec. Communications, 1920-1922.
Technical adviser on electrical communications American Delegation to Conference on Limitation of Armament, 1921-1922. Lecturer, Army War College, 1923, 24, 26, Post Graduate School United States Naval Academy, 1926. Director Institute Current World Affairs 1926-1959, director emeritus, since 1959.