New York Recital Debut Entered from booking ledger and New York Times concert listing and review. "Music Makers an Operas, Concerts, Recitals: OPERA METROPOLITAN OTHER EVENTS." New York Times (1923-), Oct 30 1966, p. 1. ProQuest. Web. 17 Sep. 2024. "PIANO DEBUT IS MADE BY FRANCIS HEILBUT." New York Times (1923-), Nov 04 1966, p. 30. ProQuest. Web. 17 Sep. 2024.