Student, University Oregon, 1940.
Beginning his Hollywood career as a messenger for Metro-Goldwyn-Mayer, Larson ultimately became a screenwriter for short films and later for television His television writing credits during the 1950s include Studio One, The Lone Ranger, and Climax!. During the 1960s, he wrote episodes for The Virginian and Rawhide.
In 1964, he became an associate producer on Twelve O"Clock High for which he also wrote five episodes.
He also wrote and directed several episodes of that series. Larson also produced and wrote for the television shows The Interns and Cade"s County.
During the late 1970s and early 1980s, he wrote for Hawaii Five-O, Trapper John, Doctor of Medicine, and parts 5, 7, 9, and 11 of the epic mini-series Centennial. He was the executive producer of the short-lived 1974 American Broadcasting Company police drama Nakia, and he also wrote for the show.
Larson died in Portland, Oregon on 21 September 2006.
Member Writers Guild American West, Producers Guild, Mystery Writers American (special award 1974), Authors League American.
Married Alice Mae Dovey, August 25, 1966. 1 stepson, Wyn Donavan Malotte.