found: His Them ornery Mitchum boys, c1989:CIP t.p. (John Mitchum) galley (b. Conn., 9-6-19; film critic; writer)
found: LC data base, 12-5-88(hdg.: Mitchum, John, 1919- )
found: The New York times, Dec. 1, 2001:obituaries (John Mitchum; Hollywood character actor; d. Nov. 27, 2001 in Los Angeles at age 82)
found: The prairie [MP] 1948:credits (introducing Jack Mitchum)
found: Internet movie database WWW site, April 26, 2011(John Mitchum; alternate names, John Mallory, Jack Mitchum; actor, folksinger; birth name, John Newman Mitchum; b. September 6, 1919, Bridgeport, Connecticut; d. November 29, 2001, Los Angeles, California)