. "joint recital" . . . . . "Martha Collins, Soprano, and Brooks Dunbar, Tenor" . . . . . "New York Recital Debut of Martha Collins\r\nEntered from booking ledger and New York Times concert listing and review.\r\n\"CONCERT AND OPERA PROGRAMS OF THE WEEK.\" New York Times (1923-), Apr 24 1960, p. 1. ProQuest. Web. 4 Aug. 2022.\r\nBriggs, John. \"SOPRANO, TENOR IN JOINT PROGRAM: MARTHA COLLINS AND BROOKS DUNBAR ARE HEARD AT CARNEGIE RECITAL HALL.\" New York Times (1923-), May 01 1960, p. 82. ProQuest. Web. 8 Aug. 2022." . . . . . . . . "1960-04-30T17:30:00"^^ . . .