William de Blaquiere, 6th Baron de Blaquiere of Ardkill1 
He succeeded as the 6th Baron de Blaquiere of Ardkill, co. Londonderry [I., 1800] on 24 November 1889.1 He succeeded as the 6th Baronet Blaquiere [I., 1784] on 24 November 1889.1
On his death, his titles became extinct.2
Children of William de Blaquiere, 6th Baron de Blaquiere of Ardkill and Lucienne Desbarats
- Lt. Hon. John de Blaquiere1 b. 1 Aug 1889, d. 10 Mar 1915
- Hon. Kathleen de Blaquiere+3 b. 17 Feb 1891
- Sub-Lt. Hon. Alan Boyle de Blaquiere1 b. 28 Mar 1895, d. 25 Jan 1917
- [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 IV, page 110. 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 239. Hereinafter cited as The Complete Peerage, Volume XIV.
- [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 101. Hereinafter cited as The New Extinct Peerage.
Lady Frances Harley1 
Her married name became Harcourt.
- [S22] Sir Bernard Burke, C.B. LL.D., A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire, new edition (1883; reprint, Baltimore, Maryland: Genealogical Publishing Company, 1978), page 206. Hereinafter cited as Burkes Extinct Peerage.
- [S37] BP2003 volume 3, page 3998. See link for full details for this source. Hereinafter cited as. [S37]
Edward Harley, 5th Earl of Oxford 
He gained the title of 5th Earl of Oxford.
Children of Edward Harley, 5th Earl of Oxford and Jane Elizabeth Scott
- Lady Frances Harley d. 15 Oct 1872
- Lady Jane Elizabeth Harley+ d. 1 Sep 1872
- Alfred Harley, 6th Earl of Oxford
- Lady Charlotte Mary Harley+1 b. 1813
- [S22] Sir Bernard Burke, C.B. LL.D., A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire, new edition (1883; reprint, Baltimore, Maryland: Genealogical Publishing Company, 1978), page 206. Hereinafter cited as Burkes Extinct Peerage.
- [S3409] Caroline Maubois, “re: Penancoet Family,” e-mail message to BENR, 2 December 2008. Hereinafter cited as “re: Penancoet Family.”
Major Henry Arthur Harcourt Vernon1 
He gained the rank of Major in the Royal Artillery.1
Captain Charles Egerton Harcourt Vernon1 
He gained the rank of Captain in the Royal Navy.1
Child of Captain Charles Egerton Harcourt Vernon and Louisa Anne Garth
Charles Godfrey Chenevix Trench1 
Charles Godfrey Chenevix Trench also went by the nick-name of Jack.2 He was educated at Loretto School, Muselborough, East Lothian, ScotlandG.1 He graduated from Lincoln College, Oxford University, Oxford, Oxfordshire, EnglandG, with a Bachelor of Arts (B.A.)1 He was in the Indian Civil Service.1 He was appointed Companion, Order of the Indian Empire (C.I.E.) in 1931.1
Children of Charles Godfrey Chenevix Trench and Margaret May Blakesley
- Christopher John Chenevix Trench+1 b. 27 Jul 1911, d. 10 Jul 1971
- Lt.-Cdr. Richard Blakesley Chenevix Trench+1 b. 28 Oct 1912, d. 16 May 1979
- Commander Godfrey Maxwell Chenevix Trench+1 b. 14 Oct 1917, d. 29 Jul 2005
- Anthony Chenevix Trench+1 b. 10 May 1919, d. 21 Jun 1979
Anne Howell Gater 
From 5 January 1822, her married name became Danby.3 Her married name became Vernon-Harcourt.
- [S522] Edmund Lodge, compiler, The Peerage and Baronetage of the British Empire, 80th edition (London, U.K.: Kelly’s Directories Ltd, 1911), page 142. Hereinafter cited as Peerage and Baronetage of the British Empire, 80th edition.
- [S37] BP2003 volume 3, page 3999. See link for full details for this source. Hereinafter cited as. [S37]
- [S1401] Christopher Quaile, “re: Lord Bowen,” e-mail message to British and European Nobility Register. Hereinafter cited as “re: Lord Bowen.”
William Gater
Child of William Gater
- Anne Howell Gater b. c 1796, d. 26 Jun 1879
Margaret May Blakesley1 
From 8 September 1910, her married name became Chenevix Trench.1
Children of Margaret May Blakesley and Charles Godfrey Chenevix Trench
- Christopher John Chenevix Trench+1 b. 27 Jul 1911, d. 10 Jul 1971
- Lt.-Cdr. Richard Blakesley Chenevix Trench+1 b. 28 Oct 1912, d. 16 May 1979
- Commander Godfrey Maxwell Chenevix Trench+1 b. 14 Oct 1917, d. 29 Jul 2005
- Anthony Chenevix Trench+1 b. 10 May 1919, d. 21 Jun 1979
- [S8] BP1999 volume 1, page 125. See link for full details for this source. Hereinafter cited as. [S8]
Reverend Charles Vernon-Harcourt 
He held the office of Prebendary of Carlisle.1
