Edith Isabella Mercer-Henderson1 
Her married name became Haldane-Duncan-Mercer-Henderson.
Child of Edith Isabella Mercer-Henderson and Hon. Hew Adam Dalrymple Hamilton Haldane-Duncan-Mercer-Henderson
- Georgiana Wilhelmina Haldane-Duncan-Mercer-Henderson+1 b. 15 Apr 1867, d. 26 Mar 1937
- [S37] BP2003 volume 1, page 578. See link for full details for this source. Hereinafter cited as. [S37]
Lt.-Gen. Douglas Mercer-Henderson1 
He was appointed Companion, Order of the Bath (C.B.)1 He lived at Fordell, Fife, ScotlandG.1
Children of Lt.-Gen. Douglas Mercer-Henderson
- Edith Isabella Mercer-Henderson+1 d. 24 Feb 1902
- George William Mercer-Henderson
- [S37] BP2003 volume 1, page 578. See link for full details for this source. Hereinafter cited as. [S37]
George William Mercer-Henderson
Lt.-Col. George Mercer1
Child of Lt.-Col. George Mercer and Jean Henderson
- [S37] BP2003 volume 1, page 578. See link for full details for this source. Hereinafter cited as. [S37]
Jean Henderson1 
Her married name became Mercer.
Child of Jean Henderson and Lt.-Col. George Mercer
- [S37] BP2003 volume 1, page 578. See link for full details for this source. Hereinafter cited as. [S37]
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
Eden Liliane Mengers1
Sir Robert Henderson, 6th Bt.1 
He succeeded as the 6th Baronet Henderson, of Fordell, co. Fife [N.S., 1664] on 12 December 1817.1
On his death, the Baronetcy of Henderson of Fourdell became extinct.
Child of Sir Robert Henderson, 6th Bt.
- Frances Henderson+3 b. 3 Jan 1793, d. 13 May 1865
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume III, page 347. Hereinafter cited as The Complete Baronetage.
- [S6286] Clan MacFarlane and associated clans genealogy, online http://www.clanmacfarlanegenealogy.info. Hereinafter cited as Clan MacFarlane.
- [S37] BP2003 volume 1, page 953. See link for full details for this source. Hereinafter cited as. [S37]
John Hampden Mercer-Henderson, 8th Earl of Buckinghamshire1 
John Hampden Mercer-Henderson, 8th Earl of Buckinghamshire was born on 16 April 1906.1 He was the son of Sidney Carr Hobart-Hampden-Mercer-Henderson, 7th Earl of Buckinghamshire and Georgiana Wilhelmina Haldane-Duncan-Mercer-Henderson.1 He died on 2 January 1963 at age 56, unmarried.1
He was given the name of John Hampden Hobart-Hampden-Mercer-Henderson at birth.1 He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He succeeded as the 12th Baronet Hobart, of Intwood, Norfolk [E., 1611] on 15 January 1930.1 He succeeded as the 8th Earl of Buckinghamshire [G.B., 1746] on 15 January 1930.1 He succeeded as the 8th Baron Hobart of Blickling, Norfolk [G.B., 1728] on 15 January 1930.1 On 5 April 1938 his name was legally changed to John Hampden Mercer-Henderson by Royal Licence.1 He gained the rank of Captain in the Oxfordshire and Buckinghamshire Light Infantry.1 He fought in the Second World War.1 He held the office of Justice of the Peace (J.P.) for Buckinghamshire in 1952.1 He held the office of Deputy Chairman of the Committees of the House of Lords between 1952 and 1963.1 He held the office of Deputy Speaker of the House of Lords between 1954 and 1963.1
Vice-Admiral Hon. Augustus Charles Hobart-Hampden1 
He was awarded the Order of Medjidie 2nd class.1 He was awarded the Grand Cross, Order of Franz Josef of Austria.1 He was awarded the Commandeur, Ordre national de la Légion d’honneur.1 He was awarded the Order of Osmanieh 2nd class.1 He gained the rank of Vice-Admiral in the Royal Navy.1 He gained the rank of Admiral in the Turkish Service, as Hobart Pasha.1 He gained the rank of Vice-Admiral in the Royal Navy.
- [S37] BP2003 volume 1, page 578. See link for full details for this source. Hereinafter cited as. [S37]
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume II, page 405. Hereinafter cited as The Complete Peerage.
Captain Hon. Charles Edward Hobart-Hampden1 
He was given the name of Charles Edward Hobart at birth. He gained the rank of Captain in the Bombay Army.1 In 1878 his name was legally changed to Charles Edward Hobart-Hampden.
Child of Captain Hon. Charles Edward Hobart-Hampden and Catherine Cooke
- Augustus Edward Hobart2 b. 1856, d. 1877
Child of Captain Hon. Charles Edward Hobart-Hampden and Lucy Pauline Wright
- Arthur Ernest Hobart-Hampden+1 b. 20 Jun 1864, d. 18 Jun 1952
