Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. George John James Hamilton-Gordon, 5th Earl of Aberdeen (28 September 1816 22 March 1864), styled Lord Haddo before 1860, was a British peer and Liberal Party politician. Lord Haddo was born at Bentley Priory in Hertfordshire, the eldest son of the 4th Earl of Aberdeen and was educated at Harrow School and Trinity College, Cambridge. On 5 November 1840, he married Mary Baillie (a sister of the future 10th Earl of Haddington) at Taymouth Castle and they had six children: George (1841 1870), James Henry (1845 1868, killed in a rifle accident), John Campbell (1847 1934), Mary (1844 1914, married the 8th Lord Polwarth), Harriet (1849 1942, married William Lindsay) and Katherine Eliza (1852 1931, married the 6th Lord Balfour of Burleigh).