Colgan served in the U.S. Army Air Corp. and the Air Force. Colgan is a member of the Roman Catholic Church.
Colgan was born in Frostburg, Maryland on September 25, 1926l.
- Biography from the Virginia Legislature
- Biography from Project Vote Smart
- Sen. Colgan on State Surge
- Campaign contributions:1999, 2001, 2003, 2005, 2007