Program of Christmas Music Entered from booking ledger and New York Times concert listing and review. "Opera and Concert Programs of the Week." New York Times (1923-), Dec 13 1964, p. 1. ProQuest. Web. 5 Feb. 2024. "Christmas Concert Offered by Charles Pope Choristers." New York Times (1923-), Dec 19 1964, p. 25. ProQuest. Web. 5 Feb. 2024.