Entered from booking ledger and New York Times concert listing and review. "THIS WEEK'S CONCERT AND OPERA PROGRAMS." New York Times (1923-), Feb 16 1964, p. 1. ProQuest. Web. 3 Nov. 2023. "FOLK-SONG RECITAL HAS VOICE AND HARP." New York Times (1923-), Feb 24 1964, p. 21. ProQuest. Web. 6 Nov. 2023.