New York Debut Entered from booking ledger and New York Times concert listing and review. "MUSIC PROGRAMS FOR THE CURRENT WEEK." New York Times (1923-), Apr 19 1964, p. 1. ProQuest. Web. 14 Nov. 2023. "MARY LOU DONAHUE IN A SONG PROGRAM." New York Times (1923-), Apr 20 1964, p. 35. ProQuest. Web. 14 Nov. 2023.