A Naval Biographical Dictionary/Cartwright, John
CARTWRIGHT. (Lieutenant, 1846.)
John Cartwright passed his examination 25 Sept. 1840, and served, as Mate, on the Mediterranean, Home, and Pacific stations, in the Powerful 84, Capts. Geo. Mansel and Michael Seymour, Cambridge 78, Capt. Edw. Barnard, Caledonia 120, flag-ship of Sir David Milne, and Collingwood 80, bearing the flag of Sir Geo. Fras. Seymour. He obtained his commission 10 March, 1846, and still serves in the last-mentioned ship as Additional Lieutenant.