Mike Flynn, ed. (2009). "History and Traditions: All-Time Coaching Records". Appalachian Football 2009 Media Guide(PDF). Appalachian Sports Information. p. 184.
United Press International (December 5, 1964). "Jim Duncan Quits". The Washington Post. Archived from the original on May 24, 2011. Retrieved March 17, 2009.
profootballarchives.com
"JIM DUNCAN". profootballarchives.com. Archived from the original on December 10, 2014. Retrieved December 10, 2014.
web.archive.org
"JIM DUNCAN". profootballarchives.com. Archived from the original on December 10, 2014. Retrieved December 10, 2014.
United Press International (December 5, 1964). "Jim Duncan Quits". The Washington Post. Archived from the original on May 24, 2011. Retrieved March 17, 2009.