Entered from booking ledger and New York Times concert listing and review. "Who Makes Music and Where." New York Times (1923-), Oct 29 1967, p. 1. ProQuest. Web. 29 Oct. 2024. "German and English Songs Offered by Hope Krieger." New York Times (1923-), Oct 30 1967, p. 59. ProQuest. Web. 29 Oct. 2024.