. . . "Some program details have been clarified as per the review published in the New York Times.\r\nStrongin, Theodore. \"Jan Peerce and Roberta Peters Blend Voices at Carnegie Hall.\" New York Times (1923-), Jan 15 1968, p. 33. ProQuest. Web. 12 Nov. 2024." . . . . . . "1968-01-14T20:30:00"^^ . . . . "Jan Peerce, Tenor, and Roberta Peters, Soprano" . . . . . . . "joint recital" . . . . . .