[2][4] According to the federal census of 1930, Jack—then 14 years old—lived with his mother and father in "Beverly Hills City", California, along with five live-in servants, who performed the daily duties of butler, housekeeper, cook, "Ladies Maid", and chauffeur.
[5] His experience in that position was later applied during his military service in World War II, when he helped to produce training films for the United States Army.
[7] The son learned only through announcements in the film industry's trade press that he had lost his job.
[2] Jack M. Warner in 1957 appeared as a contestant on You Bet Your Life, a televised quiz show hosted by Groucho Marx.
[2] Warner died of cancer of the lymph nodes on April 1, 1995, at age 79 at Cedars-Sinai Medical Center in Los Angeles.