Served in the US Marine Corps during World War II as a flight instructor.
His stepdaughter is Sally Field. In her autobiography, "In Pieces" (2018), she accused him of sexually abusing her when she was a child until the age of 14.
His remains were cremated and his ashes scattered into the sea.
Was briefly engaged to Yvonne De Carlo in 1949, but she broke off the engagement following a miscarriage.
He was famous among stuntmen for his concern for safety and preparation. If he was offered a stunt he carefully assessed the surroundings and props, and if he agreed, other stuntmen often tried to undercut his price. Hower, if he refused, no other stuntman would attempt it--if he said "No", everyone knew it wasn't safe.
He had a daughter, Princess O'Mahoney, and two stepchildren, Richard
and Sally Field, with Margaret Field and later, three more stepchildren, Carl Botefuhr, Angela Botefuhr and Andrea Botefuhr by his marriage to Autumn Russell.
Early in his acting career he was featured in several shorts by The Three Stooges. Because of his excellence as a stuntman, he was able to take all the falls and bumps required of a Stooges co-star and usually played an awkward but well-meaning bumbler.
He starred in a Durango Kid movie that was never released.
He had two children with Lorraine O'Donnell: Kathleen and Jim.