Entered from booking ledger and New York Times concert listing and review. According to the review, each chorus performed independently as well as on the Holst and Copland selections indicated here. "CONCERT AND OPERA PROGRAMS." New York Times (1923-), Apr 07 1963, p. 1. ProQuest. Web. 25 Sep. 2023. "St. Cecilia Club and Alumni of Harvard Join in Concert." New York Times (1923-), Apr 10 1963, p. 34. ProQuest. Web. 25 Sep. 2023.
Concert by the St. Cecilia Club, assisted by the Yale Alumni Chorus