found: Hallmark hall of fame. Hans Brinker [MP] 1958-02-09:credits (orchestrations by Irwin Kostal)
found: Performing arts biog. master index, 1981(Irwin Kostal; Irwin James Kostal; b. 1911; b. 1915)
found: Film composers guide, c1990(Irwin Kostal; b. 10-1-1911, Chicago, Ill.)
found: ASCAP, 4th ed.(Kostal, Irwin James; b. Oct. 1, 1911, Chicago, Ill.; composer, conductor, orchestrator)
found: Gaylord Library on WWW(Kostal, Irwin; b. 1911, d. Nov. 23, 1994)
found: Wikipedia August 28, 2017(Irwin Kostal, born October 1, 1911 in Chicago, Illinois, died November 23, 1994 in Studio City, California)
