3rd (Edinburgh Light Infantry Militia) Battalion, Royal Scots, (which had previously been commanded by his father and grandfather) and he later became Honorary Colonel of that battalion. Family Lord Lothian married, in 1865, Lady Victoria Alexandrina (d.1938), daughter of Walter Montagu Douglas Scott, 5th Duke of Buccleuch. They had three sons and six daughters: Lady Cecil Kerr (14 February 1866 - 13 September 1919) married John Douglas-Scott-Montagu, 2nd Baron Montagu de Beaulieu Walter William Schomberg Kerr, Earl of Ancram (29 March 1867 – June 1892) Lady Margaret Kerr (12 June 1868 - 2 September 1964) Lord Schomberg Kerr (4 August 1869 – 1877) Lady Mary Kerr (25 December 1870 - 31 December 1958), married Henry Kidd Lady Helen Kerr (9 December 1872 - 4 June 1968), married in 1902 her relative Major Frederic Walter Kerr (1867–1914), son of Admiral Lord Frederic Kerr (1818–1896), who was the youngest son of William Kerr, 6th Marquess of Lothian Robert Schomberg Henry Kerr, 10th marquess of Lothian – 22 March 1874 Lady Victoria Kerr (7 November 1876 - 23 May 1956) married William Sullivan Gosling Lady Isobel Alice Adelaide Kerr (25 September 1881 - 26 December 1975) married James Cospatrick Hepburne-Scott The eldest son Walter Kerr, Earl of Ancram (1867–1892) died in a shooting accident in Australia in June 1892, unmarried, while his second son Lord Schomberg Kerr (1869–1877) died in infancy. Lord Lothian died at his town residence in London on 17 January 1900, aged 66, and was succeeded in the marquessate by his third and only surviving son, Robert. The Marchioness of Lothian later remarried and died in June 1938, aged 93. References Torrance, David, The Scottish Secretaries (Birlinn 2006) 1833 births 1900 deaths Alumni of New College, Oxford Knights of the Thistle Members of the Privy Council of the United Kingdom Secretaries for Scotland Rectors of the University of Edinburgh People educated at Glenalmond College Members of the Royal Company of Archers Royal Scots officers Marquesses of Lothian Presidents of the Royal Scottish Geographical Society Fellows of the Royal Scottish Geographical Society Fellows of the Society of Antiquaries of Scotland People educated at Eton College