Bruce Loeffler received a B.S. in Chemistry from Harvey Mudd College. He did graduate work at M.I.T. and Harvard and ultimately received his Ph.D. in Geology from the University of Colorado, Boulder. He taught Geology at Colorado College from 1977 to 1999. He participated in the LGBT Oral History project via a written exchange with Andrew Wallace between September 20th and October 5th in 2011.