Entered from booking ledger and New York Times concert listing and review. WORLD PREMIERE of Irving Mopper's DIRGE "CONCERT AND OPERA PROGRAMS FOR THE WEEK." New York Times (1923-Current file), Jan 27 1957, p. 1. ProQuest. Web. 4 May 2021. "CARRIE GLOVER SINGS: SOPRANO FROM PHILADELPHIA IS HEARD IN RECITAL." New York Times (1923-Current file), Jan 28 1957, p. 20. ProQuest. Web. 4 May 2021.