Career
Heydenfeldt played Tight end and Punter for coach Red Sanders at University of California, Los Angeles from 1952-1954. He played professionally for the Edmonton Eskimos of the Western Interprovincial Football Union. Heydenfeldt returned to the United States. after one season in Canada and joined the Air Force.
He was stationed at Hamilton Air Force Base in Novato, California and played End for the base football team
He later opened a sporting goods store with former University of California, Los Angeles teammate Don Long.