Ko Iwasaki, Cello, and Shuku Iwasaki, Piano
Entered from booking ledger and New York Times concert listing and review. The correct program order is uncertain. "Who Makes Music and Where." New York Times (1923-), 13 Apr. 1969, p. 1. ProQuest. Web. 13 May 2025. Henahan, Donal. "Ko Iwasaki, Cellist, and Sister, Shuku, Pianist, in Sonata Recital." New York Times (1923-), 15 Apr. 1969, p. 42. ProQuest. Web. 13 May 2025.