Party affiliation: Democrat
With engineering department American Tel. & Tel. Company, 1901-1918, department development and research, 1919-1933. Switching theory engineer Bell Telephone laboratories, New York City, 1934-1942.
Special lecturer mathematics Newark College Engineering, 1946-1958, adjunct professor, from 1958. Alternate on John Fritz Medal Board of Award, 1958. Division war research Columbia, 1943-1945.
Fellow Institute Mathematics Statictics, American Association for the Advancement of Science, Royal Economics Society London, American Statis Association, American Institute of Elctrical Engineering (board examination from 1952), American Society Quality Control. Member American Mathematics Society, Mathematics Association American, American Astronomical Society, Econometric Society, Metropolitan Museum Art, Telephone Pioneers of America, Acoustical Society American, American Society Engineering Education, Omicron Delta Kappa, Eta Kappa Nu (eminent. Clubs: Railroad Machinery (New York City).