Entered from booking ledger and New York Times concert listing and review. "Who Makes Music and Where." New York Times (1923-), Mar 17 1968, p. 1. ProQuest. Web. 4 Dec. 2024. Henahan, Donal. "VOICE RECITAL GIVEN BY MARY BETH PEIL." New York Times (1923-), Mar 19 1968, p. 38. ProQuest. Web. 5 Dec. 2024.