OCLC, 5/3/96 (hdg.: Holm, John Cecil, 1904- ; usage: John Cecil Holm)
Internet movie database WWW home page, Feb. 14, 2007 (John Cecil Holm; b. Oct. 24, 1904, Philadelphia, Pa.; d. Oct. 24, 1981, Westerly, R.I.; sometimes credited as John Cecil Holme, Holm)