Entered from booking ledger and New York Times concert listing and review. "CONCERT AND OPERA PROGRAMS OF THE WEEK." New York Times (1923-), Oct 23 1960, p. 1. ProQuest. Web. 15 Aug. 2022. "BAROQUE MUSIC PLAYED: JOHN PERRAS, FLUTIST, IS HEARD WITH LEBER, HARPSICHORDIST." New York Times (1923-), Oct 26 1960, p. 45. ProQuest. Web. 16 Aug. 2022.