Renfro had a ranch in Van Nuys (in the central San Fernando Valley region of the city of Los Angeles, California) where he reportedly trained roughly 100 dogs for films over the course of his long career.
Father of animal trainer, stuntman, and author Bryan Renfro.
Rennie was the owner of the famous dog Spooks who played Daisy (I) in the popular 'Blondie' series of films in the 1930s, '40s, and '50s.