John Cator1 
He held the office of High Sheriff of Kent in 1818.2 He held the office of Justice of the Peace (J.P.) for Kent.2 He lived at Woodbastwick Hall, Norfolk, EnglandG.1 He lived at Beckenham Place, Kent, EnglandG.1
Children of John Cator and Elizabeth Louisa Mahon
- Elizabeth Diana Cator+4 d. 1859
- Anne Charlotte Cator4 d. 6 Dec 1852
- Albemarle Cator+2 b. 7 Apr 1813, d. 1 May 1868
- Emily Anne Cator4 b. c 1814, d. 1815
- William Thornhill Cator4 b. 1821, d. 1879
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S339] Descendants of William the Conqueror, online http://www.william1.co.uk/. Hereinafter cited as Descendants of William the Conqueror.
- [S3268] Hans Harmsen, “re: Chester Family,” e-mail message to BENR, 21 August 2008. Hereinafter cited as “re: Chester Family.”
Sir William Vesey Ross Mahon, 4th Bt.1 
He graduated from Trinity College, Dublin University, Dublin, County Dublin, Ireland, with a Master of Arts (M.A.)2 He was Rector between 1844 and 1893 at Rawmarsh, Yorkshire, England.2 He succeeded as the 4th Baronet Mahon, of Castlegar, co. Galway [U.K., 1819] on 11 March 1852.2
Children of Sir William Vesey Ross Mahon, 4th Bt. and Jane King
- Ross Mahon2 b. Nov 1854, d. Nov 1854
- Ross Mahon2 b. 10 Jan 1856, d. 24 Jun 1876
- Sir William Henry Mahon, 5th Bt.+2 b. 31 Dec 1856, d. 13 Aug 1926
- John FitzGerald Mahon+2 b. 20 Jan 1858, d. 5 Nov 1942
- Mary Geraldine Mahon3 b. 1859, d. 28 Dec 1921
- Reverend James Vesey Mahon2 b. 23 Feb 1860, d. 27 Jun 1887
- Alice Jane Mahon2 b. 1861, d. 25 Sep 1937
- Edward Mahon+2 b. 1 Jun 1862, d. 18 Jun 1937
- Gilbert Mahon b. 7 Oct 1865, d. 2 Jan 1947; youngest son1
Jane King1 
Her married name became Mahon.
Children of Jane King and Sir William Vesey Ross Mahon, 4th Bt.
- Ross Mahon1 b. Nov 1854, d. Nov 1854
- Ross Mahon1 b. 10 Jan 1856, d. 24 Jun 1876
- Sir William Henry Mahon, 5th Bt.+1 b. 31 Dec 1856, d. 13 Aug 1926
- John FitzGerald Mahon+1 b. 20 Jan 1858, d. 5 Nov 1942
- Mary Geraldine Mahon b. 1859, d. 28 Dec 1921
- Reverend James Vesey Mahon1 b. 23 Feb 1860, d. 27 Jun 1887
- Alice Jane Mahon1 b. 1861, d. 25 Sep 1937
- Edward Mahon+1 b. 1 Jun 1862, d. 18 Jun 1937
- Gilbert Mahon1 b. 7 Oct 1865, d. 2 Jan 1947
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]
Reverend Henry King1 
He graduated with a Master of Arts (M.A.)4 He succeeded to Ballylin.4 He lived at Ballylin, County Offaly, IrelandG.1
Child of Reverend Henry King
Children of Reverend Henry King and Harriet Lloyd
- [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 I, page 414. Hereinafter cited as The Complete Peerage.
- [S37] BP2003 See link for full details for this source. Hereinafter cited as. [S37]
- [S4387] Walter Volovsek, “re: Mahon Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 22 December 2009. Hereinafter cited as “re: Mahon Family.”
- [S37] BP2003. [S37]
Sir William Henry Mahon, 5th Bt.1 
He succeeded as the 5th Baronet Mahon, of Castlegar, co. Galway [U.K., 1819] on 14 August 1893.2 He held the office of High Sheriff of County Galway in 1898.2 He gained the rank of Major in the 4th (Militia) Battalion, West Yorkshire Regiment.2 He held the office of Justice of the Peace (J.P.) for the West Riding, Yorkshire.2 He held the office of Deputy Lieutenant (D.L.) of County Galway.2 He was awarded the Distinguished Service Order (D.S.O.)2 He held the office of Justice of the Peace (J.P.) for County Galway.2 He fought in the Boer War between 1900 and 1902.2
Children of Sir William Henry Mahon, 5th Bt. and Hon. Edith Augusta Dillon
- Ursula Augusta Jane Mahon+3 b. 17 Jan 1906
- William Gerald Ross Mahon2 b. 2 Sep 1909, d. 31 Aug 1910
- Sir George Edward John Mahon, 6th Bt.+3 b. 22 Jun 1911, d. 16 Dec 1987
- Mary Edith Georgiana Mahon3 b. 22 Jun 1911, d. 17 Nov 1918
- Luke Bryan Arthur Dillon-Mahon+2 b. 12 Apr 1917, d. 23 Jul 1997
- [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 76. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Hon. Edith Augusta Dillon1 
From 26 January 1905, her married name became Mahon.1
Children of Hon. Edith Augusta Dillon and Sir William Henry Mahon, 5th Bt.
- Ursula Augusta Jane Mahon+3 b. 17 Jan 1906
- William Gerald Ross Mahon2 b. 2 Sep 1909, d. 31 Aug 1910
- Sir George Edward John Mahon, 6th Bt.+3 b. 22 Jun 1911, d. 16 Dec 1987
- Mary Edith Georgiana Mahon3 b. 22 Jun 1911, d. 17 Nov 1918
- Luke Bryan Arthur Dillon-Mahon+2 b. 12 Apr 1917, d. 23 Jul 1997
- [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 76. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Luke Gerald Dillon, 4th Baron Clonbrock1 
He was educated between 1846 and 1852 at Eton College, Windsor, Berkshire, EnglandG.1,4 He graduated from Balliol College, Oxford University, Oxford, Oxfordshire, EnglandG, with a Bachelor of Arts (B.A.)1 He held the office of Second Secretary to Vienna in 1862.1 He held the office of Sheriff of County Galway in 1865.1 He was Private Secretary to the Viceroy of Ireland between 1866 and 1868.1 He was Private Secretary to the Viceroy of Ireland between 1874 and 1876.2 He held the office of Lord-Lieutenant of County Galway in 1892.1 He succeeded as the 4th Baron Clonbrock, of Clonbrock, co. Galway [I., 1790] on 4 December 1893.1 He held the office of Representative Peer [Ireland] between 1895 and 1917.1 He was appointed Privy Counsellor (P.C.) [Ireland] on 10 February 1898.2 He was appointed Knight, Order of St. Patrick (K.P.) on 29 August 1900.2 He was Knight, Order of St. Patrick (K.P.) (see edn) in 1926.5
Children of Luke Gerald Dillon, 4th Baron Clonbrock and Hon. Augusta Caroline Crofton
- Hon. Georgiana Caroline Dillon1 b. 27 May 1867
- Robert Edward Dillon, 5th Baron Clonbrock1 b. 21 May 1869, d. 1 Nov 1926
- Hon. Edith Augusta Dillon+1 b. 9 Aug 1878, d. 24 Apr 1964
- Hon. Ethel Louisa Dillon1 b. 16 Oct 1880
- [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 76. Hereinafter cited as The New Extinct Peerage.
- [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 III, page 328. Hereinafter cited as The Complete Peerage.
- [S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 192, says 14 May 1917. Hereinafter cited as The Complete Peerage, Volume XIV.
- [S2] Peter W. Hammond, The Complete Peerage, Volume XIV, page 192.
- [S37] BP2003 volume 1, page 971. See link for full details for this source. Hereinafter cited as. [S37]
Ross Mahon1 
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]
Ross Mahon1 
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]
Reverend James Vesey Mahon1 
He was Curate between 1883 and 1887 at Rawmarsh, Yorkshire, England.1 He graduated from Oxford University, Oxford, Oxfordshire, England, in 1885 with a Bachelor of Arts (B.A.)1
- [S37] BP2003 volume 2, page 2561. See link for full details for this source. Hereinafter cited as. [S37]