A Naval Biographical Dictionary/Maxwell, John Heron
MAXWELL, Bart. (Lieutenant, 1828. f-p., 15; h-p., 11.)
Sir John Heron Maxwell, born 7 March, 1808, is third and eldest surviving son of Sir John Maxwell, Bart., of Springkell, Dumfriesshire, by Mary, only surviving child and heir of Patrick Heron, Esq., of Heron, in the Stewartry of Galloway, M.P., whose wife, Elizabeth, was the only daughter of the eighth Earl of Dundonald. He succeeded his elder brother, the late Sir Patrick Heron Maxwell, as sixth Baronet, 27th Aug. 1844.
This officer entered the Navy 1 Feb. 1821; passed his examination in 1827; obtained his commission 17 Sept. 1828; and was subsequently appointed – 11 Jan. 1832, to the Stag 46, Capt. Sir Edw. Thos. Troubridge, on the Cork station – 21 Oct. following, to the Britannia 120, Capt. Peter Bainier, employed off Lisbon, whence he returned in 1833 – 11 Dec. 1838, to the command of a station in the Coast Guard – and 17 Sept. 1842, to the San Josef 110, bearing the flag of Sir Sam. Pym, Admiral Superintendent at Devonport. Since the paying off of the latter ship, in 1845, Sir John has been on half-pay.
He married, 7 Nov. 1833, Caroline, sixth daughter of the Hon. Montgomery J. G. Stewart, and niece of the late Earl of Galloway, by whom he has issue a son and three daughters.