THOMAS (1780-1858) , 9th earl, was made a peer of the United Kingdom as Baron Melros of Tyninghame, a title which became extinct upon his death. He was lord-lieutenant of Ireland 3 5) under Sir Robert Peel, and in Peel's second administration (1841-1846) was first lord of the admiralty and then lord privy seal. At his death (Dec. 1, 1858) the earldom passed to his kins man, GEORGE BAILLIE (1802-1870), a descendant of the 6th earl.
This nobleman took the name of Baillie-Hamilton, and his son GEORGE (1827-1917) became Ilth earl of Haddington in 187o. In 1917 he was succeeded by his grandson.
See State Papers of Thomas, Earl of Melrose, published by the Abbotsford Club in 1837, and Sir W. Fraser, Memorials of the Earls of Haddington (1889). .