. "solo recital" . . . "New York Recital Debut\r\nEntered from booking ledger and New York Times concert listing and review. Note that the ledger and listing both identify Ms. Jackson as a soprano, whereas the review refers to her as a mezzo-soprano.\r\n\"Who Makes Music and Where.\" New York Times (1923-), Sep 25 1966, p. 123. ProQuest. Web. 12 Sep. 2024.\r\n\"Harriet Jackson, Mezzo, Makes Debut as Soloist.\" New York Times (1923-), Sep 26 1966, p. 49. ProQuest. Web. 12 Sep. 2024." . . . "1966-09-25T17:30:00"^^ . . "Harriet Jackson, Soprano" . . . .