Entered from booking ledger and New York Times concert listing and review. "CONCERT AND OPERA PROGRAMS THIS WEEK." New York Times (1923-), Apr 16 1961, p. 1. ProQuest. Web. 30 Sep. 2022. Ericson, Raymond. "JOHN FLEMING GIVES FOLK-SONG PROGRAM." New York Times (1923-), Apr 19 1961, p. 32. ProQuest. Web. 3 Oct. 2022.