. . "Entered from program calendar and New York Times concert listing and review.\r\n\"Concert and Opera Programs of the Week.\" New York Times (1923-Current file): 1. Apr 27 1952. ProQuest. Web. 28 Mar. 2014.\r\n\"Betty June Cooper.\" New York Times (1923-Current file): 32. Apr 29 1952. ProQuest. Web. 28 Mar. 2014." . "solo recital" . . . . "Betty June Cooper" . . . . . "1952-04-28T20:30:00"^^ . . .