. . "Entered from booking ledger and New York Times concert listing. The accompanist is not identified.\r\n\"Who Makes Music and Where.\" New York Times (1923-), Nov 19 1967, p. 142. ProQuest. Web. 4 Nov. 2024." . "1967-11-20T20:30:00"^^ . "Martha Williford, Soprano" . . . . . . . . . "solo recital" .