Background
Ennis, William Duane was born on January 6, 1877 in in Bergen County, New Jersey, United States. Son of William C. and Kate E. (Burroughs) Ennis.
Ennis, William Duane was born on January 6, 1877 in in Bergen County, New Jersey, United States. Son of William C. and Kate E. (Burroughs) Ennis.
Mechanical Engineering, Stevens Institute Technology, 1897, Doctor Engineering, 1934.
Mechanical engineer in various companies, including American Linseed Company, 1897-1905. Engineer American Locomotive Company, 1905-1907. Served as professor mechanic engineering, Polytechnic Institute of Brooklyn, Columbia University, United States Naval Academy Consultant in mechanic engineering and industrial management.
Commissioned major United States.R. and on active duty, Ordnance Department, Washington, and Watervliet Arsenal, New York, 1917-1918.
Vice president, Technical Advisory Corporation, New York, 1920-1929. Alexander Crombie Humphreys professor, economics of engineering, Stevens Institute Technology, 1929-1944.
Now professor emeritus.
Fellow of the American Association for the Advancement of Science, Royal Economics Society. Member American Economic Association, Tau Beta Pi.
Married Margaret Schuyler, December 28, 1898.