. "1964-01-19T17:30:00"^^ . . . . "Richard Parke, Tenor, and Jay Hilborn, Baritone" . "New York Debut\r\nEntered from booking ledger and New York Times concert listing and review.\r\n\"WEEK'S MUSIC.\" New York Times (1923-), Jan 19 1964, p. 1. ProQuest. Web. 1 Nov. 2023.\r\n\"Tenor and Baritone Program.\" New York Times (1923-), Jan 20 1964, p. 21. ProQuest. Web. 1 Nov. 2023." . . . . . . . . .