William Ward Duffield was an executive in the coal industry, a railroad construction engineer, and an officer in the Union Army during the American Civil War. After the war he was appointed Superintendent of the United States Coast and Geodetic Survey.
- Occupation
- politician
- Position held
- member of the State Senate of Michigan
- Citizenship
- United States
- Born
- November 19, 1823
- Died
- June 22, 1907