Commons 1754-1790

b. 25 May 1767, 1st s. of Sir John Hamilton, 1st Bt., by Cassandra Agnes, da. of Edmund Chamberlayne of Maugersbury, Glos.; he was descended in the junior line from James, 1st Earl of Abercorn. educ. R. N. Acad. Portsmouth 1777. m. 19 Apr. 1803, Henrietta Martha, da. of George Drummond, banker, of Stanmore, Mdx., 1s. suc. fa. 24 Jan. 1784; K.C.B. 29 Jan. 1833.

b. 23 Aug. 1730, o. surv. s. of James, 1st Earl of Clanbrassill, M.P., by Lady Henrietta Bentinck, da. of William, 1st Earl of Portland. m. 21 May 1774, Grace, da. of Thomas Foley, s.p. suc. fa. 17 Mar. 1758. K.P. 5 Feb. 1783.

b. 4 Feb. 1715, 2nd s. of Sir Robert Dalrymple, adv., of Castleton, Haddington by his 1st w. Johanna, da. and h. of Hon. John Hamilton, 1st s. of John, 2nd Lord Bargany [S]; bro. of Sir Hew Dalrymple, 2nd Bt. educ. North Berwick; adv. 1735; M. Temple 1735; Leyden 1738. m. (1) contract 25 Apr. 1746, Lady Anne Wemyss (d. c.1760), da. of James, 4th Earl of Wemyss [S], s.p.; (2) contr. 4 July 1769, Margaret, da. of Alexander Montgomerie of Coilsfield, Ayr, and sis. of Hugh Montgomerie. suc. to Bargany estates and changed his name to Hamilton on; d. of James, 4th Lord Bargany 1736.