Earl of Strathmore and Kinghorne and Cecilia Cavendish-Bentinck and the sister of the Queen Mother. Hon. Mountstuart William Fullerton-Elphinstone (1871–1957), who served as Private Secretary to the Military Secretary, War Office during the World War I and who died unmarried. Hon. Constance Lothian Fullerton-Elphinstone (1873–1895), who died unmarried. He died in January 1893, aged 64, and was succeeded in his titles by his eldest surviving son Sidney. Lady Elphinstone died in March 1922, and lived in Pinewood, Windlesham, Surrey. Notes References Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990, 1828 births 1893 deaths Conservative Party (UK) Baronesses- and Lords-in-Waiting Scottish representative peers English people of Dutch descent De Peyster family Schuyler family Van Cortlandt family William Barons in the Peerage of the United Kingdom 15 Peers of the United Kingdom created by Queen Victoria