Entered from booking ledger and New York Times concert listing and review. "THE WEEK'S PROGRAMS." New York Times (1923-Current file), Oct 09 1955, p. 1. ProQuest. Web. 10 Sep. 2020. "LAWRENCE, BASS, HEARD: OFFERS AMBITIOUS PROGRAM AT CARNEGIE RECITAL HALL." New York Times (1923-Current file), Oct 24 1955, p. 23. ProQuest. Web. 14 Sep. 2020.