Father of Pat Coughlan of Saugus, California; daughters-Cathy Farley of Gold Hill, Oregon, Judy Coghlan of Seal Beach, California, and Libbey Gagnon of Long Beach, California.
Interviewed in "It Came from Horrorwood: Interviews with Moviemakers in the SF and Horror Tradition" by Tom Weaver (McFarland, 1996).
Son of Frank Edward Coughlan and Katherine Coyle Coghlan.