Entered from booking ledger and New York Times concert listing and review. "Display Ad 167 -- no Title." New York Times (1923-), Nov 29 1959, p. 1. ProQuest. Web. 22 Apr. 2022. "GEORGE S. IRVING HEARD: BASS-BARITONE SINGS SCHUBERT SONG CYCLE, 'WINTERREISE'." New York Times (1923-), Nov 30 1959, p. 28. ProQuest. Web. 22 Apr. 2022.