Kalle Ruusunen, Baritone Entered from booking ledger and New York Times concert listing and review. Although the event listing does not name the program, the review includes some incomplete selection information. "CONCERT AND OPERA PROGRAMS FOR THE WEEK." New York Times (1923-Current file), Oct 23 1955, p. 1. ProQuest. Web. 24 Sep. 2020. "Ruusunen, Baritone, Sings with Brilliance." New York Times (1923-Current file), Oct 29 1955, p. 13. ProQuest. Web. 24 Sep. 2020. solo recital 1955-10-28T20:30:00