"Mackenzie, Alexander Slidell"@en . "1867Z"^^ . . "1842Z"^^ . . . "United States Navy officer" . . "1842-01-24Z"^^ . . . "Alexander Slidell MacKenzie (January 24, 1842 \u2013 June 13, 1867) was an officer in the United States Navy during the American Civil War."@en . "1867-06-13Z"^^ .