Frederick Cavendish1 
- [S37] BP2003 volume 1, page 1128. See link for full details for this source. Hereinafter cited as. [S37]
Henry Cavendish1 
He was appointed Fellow, Royal Society (F.R.S.)1 He was a chemist and philosopher.1 He has an extensive biographical entry in the Dictionary of National Biography.2

Frederick John Howard1 
He held the office of Member of Parliament (M.P.) for Youghal between 1837 and 1841.1 He was Private Secretary to the Lord-Lieutenant of Ireland (his cousin, 7th Earl of Carlisle.)1 He held the office of Deputy Lieutenant (D.L.) of Sussex.1
Children of Frederick John Howard and Lady Fanny Cavendish
- Louisa Blanche Howard+2 d. 7 Oct 1871
- Margaret Fanny Howard+2 d. 1919
- Edith Susan Louisa Howard2 d. 8 Jan 1922
- William Frederick Howard2 b. 26 Jun 1838, d. 28 May 1918
- George Francis Howard2 b. 28 Apr 1840, d. 1 Aug 1913
- Frederick Compton Howard+2 b. 23 Jan 1847, d. 14 Aug 1909
- Alfred John Howard+3 b. 14 Oct 1848, d. 22 Nov 1916
- Gerald Richard Howard+2 b. 7 Nov 1853, d. 20 May 1945
Major Hon. Frederick Howard1

He gained the rank of Major in the 10th Hussars.1 He fought in the Battle of Waterloo on 18 June 1815.
Children of Major Hon. Frederick Howard and Frances Susan Lambton
- Frederick John Howard+2 b. 1 Mar 1814, d. 28 Feb 1897
- Villiers Frederick Francis Howard2 b. 16 Nov 1815, d. 30 Nov 1823
Lady Emily Augusta Lambton1 
Her married name became Cavendish.
Children of Lady Emily Augusta Lambton and Lt.-Col. William Henry Frederick Cavendish
- Susan Louisa Cavendish+ d. 19 Dec 1917
- Captain Henry Frederick Compton Cavendish+1 b. 6 May 1854, d. 21 Jan 1928
- Major Cecil Charles Cavendish+1 b. 14 May 1855, d. 21 Jan 1931
- [S37] BP2003 volume 1, page 1128. See link for full details for this source. Hereinafter cited as. [S37]
John George Lambton, 1st Earl of Durham1 
He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He held the office of Lord Privy Seal between 1803 and 1803.1 He gained the rank of officer between 1809 and 1811 in the 10th Dragoons.1 He held the office of Member of Parliament (M.P.) (Whig) for County Durham between 1813 and 1828.1 He was created 1st Baron Durham of the City of Durham and of Lambton Castle, co. Durham [U.K.] on 29 January 1828.1 He was appointed Privy Counsellor (P.C.) in 1830.1 He was created 1st Viscount Lambton [U.K.] on 23 March 1833.1 He was created 1st Earl of Durham [U.K.] on 23 March 1833.1 He was awarded the Knight, Order of Alexander Nevsky.1 He was awarded the Knight, Order of St. Andrew.1 He was awarded the Knight, Order of St. Anne and the White Eagle of Russia.1 He was awarded the Knight, Order of Leopold of Russia.1 He was awarded the Knight, Order of the Saviour of Greece.1 He held the office of Ambassador to Russia between 1835 and 1837.1 He was appointed Knight Grand Cross, Order of the Bath (G.C.B.) in 1837.1 He held the office of Governor-General of Canada between January 1838 and December 1838.1 He held the office of High Stewart of Hull.1
Children of John George Lambton, 1st Earl of Durham and Lady Harriet Cholmondeley
- Lady Georgiana Sarah Elizabeth Lambton1 d. 3 Jan 1833
- Hon. Harriet Caroline Lambton1 d. 12 Jun 1832
- Lady Frances Charlotte Lambton2 b. 16 Oct 1812, d. 18 Dec 1835
Children of John George Lambton, 1st Earl of Durham and Lady Louisa Elizabeth Grey
- Lady Emily Augusta Lambton+3 d. 2 Nov 1886
- Lady Alice Anne Caroline Lambton1 d. 15 Jan 1907
- Lady Mary Louisa Lambton+1 d. 9 Mar 1898
- Hon. Charles William Lambton1 b. 16 Jan 1818, d. 24 Sep 1831
- George Frederick D’Arcy Lambton, 2nd Earl of Durham+1 b. 5 Sep 1828, d. 27 Nov 1879
- [S37] BP2003 volume 1, page 1246. 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 172. Hereinafter cited as The Complete Peerage.
- [S37] BP2003. [S37]
Captain Henry Frederick Compton Cavendish1 
He held the office of Deputy Lieutenant (D.L.) of Derbyshire.1 He held the office of Justice of the Peace (J.P.) for Derbyshire.1 He gained the rank of Captain in the Royal Navy (emergency list.)1
Children of Captain Henry Frederick Compton Cavendish and Lady Harriet Castalia Godolphin Osborne
- Emily Georgiana Harriet Cavendish1 b. 22 Dec 1890, d. 23 Dec 1976
- Evelyn Alice Beatrix Cavendish+1 b. 30 Jul 1892
- Commander Henry James Francis Cavendish1 b. 17 Aug 1893, d. 30 Jun 1956
- Lt.-Cdr. George Sidney Godolphin Cavendish1 b. 3 Dec 1895
- [S37] BP2003 volume 1, page 1128. See link for full details for this source. Hereinafter cited as. [S37]
George Godolphin Osborne, 9th Duke of Leeds1 
He succeeded as the 9th Viscount Oseborne of Dunblane [S., 1673] on 8 August 1872.1 He succeeded as the 3rd Baron Godolphin, of Farnham Royal, co. Buckingham [U.K., 1832] on 8 August 1872.1 He succeeded as the 10th Baronet Osborne, of Kiveton, co. York [E., 1620] on 8 August 1872.1 He succeeded as the 9th Marquess of Carmarthen [E., 1689] on 8 August 1872.1 He succeeded as the 9th Duke of Leeds [E., 1694] on 8 August 1872.1 He succeeded as the 9th Earl of Danby, co. York [E., 1674] on 8 August 1872.1 He succeeded as the 9th Baron Osborne of Kiveton, co. York [E., 1673] on 8 August 1872.1 He succeeded as the 9th Viscount Latimer of Danby, co. York [E., 1673] on 8 August 1872.1
Children of George Godolphin Osborne, 9th Duke of Leeds and Hon. Frances Georgiana Pitt-Rivers
- George Frederick Osborne, Earl of Danby b. 4 Nov 1861, d. 6 Nov 1861
- George Godolphin Osborne, 10th Duke of Leeds+1 b. 18 Sep 1862, d. 10 May 1927
- Captain Lord Francis Granville Godolphin Osborne1 b. 11 Mar 1864, d. 17 Oct 1924
- Lord Albert Edward Godolphin Osborne1 b. 10 Apr 1866, d. 30 Jun 1914
- Lady Harriet Castalia Godolphin Osborne+2 b. 28 Jul 1867, d. 16 Jun 1922
- Lady Alice Susan Godolphin Osborne+ b. 17 May 1869, d. 16 Mar 1951
- Lady Ada Charlotte Godolphin Osborne b. 30 May 1870, d. 9 Apr 1944
- Lady Alexandra Louisa Godolphin Osborne b. 20 Feb 1872, d. 19 Jan 1938
- Lady Constance Blanche Godolphin Osborne+ b. 8 Jun 1875, d. 18 Jul 1939
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 175. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 1, page 1128. See link for full details for this source. Hereinafter cited as. [S37]
Lady Harriet Castalia Godolphin Osborne1 
Her married name became Cavendish.
Children of Lady Harriet Castalia Godolphin Osborne and Captain Henry Frederick Compton Cavendish
- Emily Georgiana Harriet Cavendish1 b. 22 Dec 1890, d. 23 Dec 1976
- Evelyn Alice Beatrix Cavendish+1 b. 30 Jul 1892
- Commander Henry James Francis Cavendish1 b. 17 Aug 1893, d. 30 Jun 1956
- Lt.-Cdr. George Sidney Godolphin Cavendish1 b. 3 Dec 1895
- [S37] BP2003 volume 1, page 1128. See link for full details for this source. Hereinafter cited as. [S37]
Major Cecil Charles Cavendish1 
He gained the rank of Major in the 2nd Battalion, Highland Light Infantry.1
Children of Major Cecil Charles Cavendish and Maud Henrietta Halliday
- Major Frederick George Cavendish+1 b. 2 Nov 1891, d. 10 Apr 1936
- Bruce Alwynne Cavendish1 b. 27 Apr 1894, d. 5 Jun 1894
- Brigadier Ronald Valentine Cavendish+1 b. 14 Feb 1896, d. 6 Apr 1943
- Charles Vernon Balfour Cavendish+2 b. 14 Oct 1902