. . . . . . . . "New York Debut\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-), Mar 20 1960, p. 1. ProQuest. Web. 28 July 2022.\r\nBriggs, John. \"SCHUMANN CYCLE SUNG BY HORNOR: ' LIEDERKREIS' IS ON PROGRAM GIVEN BY BARITONE IN DEBUT AT CARNEGIE RECITAL HALL.\" New York Times (1923-), Mar 21 1960, p. 25. ProQuest. Web. 28 July 2022." . . . "1960-03-20T15:00:00"^^ . . . . "solo recital" . "John Horner, Baritone" . .