John Graham, Viola Entered from booking ledger and New York Times concert listing and review. "Who Makes Music." New York Times (1923-), 29 Mar. 1970, p. 94. ProQuest. Web. 28 July 2025. "JOHN GRAHAM PLAYS NEW CHAMBER MUSIC." New York Times (1923-), 01 Apr. 1970, p. 38. ProQuest. Web. 28 July 2025. solo recital 1970-03-31T20:30:00