Entered from booking ledger and New York Times concert listing and review. "CONCERT AND OPERA PROGRAMS OF THE WEEK." New York Times (1923-), Apr 20 1958, p. 1. ProQuest. Web. 10 Nov. 2021. "LOUISE COLUSSO HEARD: PIANIST PRESENTS AMBITIOUS PROGRAM IN RECITAL." New York Times (1923-), Apr 21 1958, p. 20. ProQuest. Web. 10 Nov. 2021.