Mary Hickman1 
Her married name became O’Brien.
Children of Mary Hickman and Sir Edward O’Brien, 2nd Bt.
- Donough O’Brien2
- Edward O’Brien+2 d. Dec 1787
- Anne O’Brien+
- Catherine O’Brien+3 d. Apr 1773
- Lucy O’Brien2
- Rt. Hon. Sir Lucius O’Brien, 3rd Bt.+2 b. 2 Sep 1731, d. 15 Jan 1795
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S3646] David Sutton, “re: O’Brien Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 1 March 2009. Hereinafter cited as “re: O’Brien Family.”
Hugh Hickman1
Children of Hugh Hickman
- Mary Hickman+3 d. 20 Feb 1760
- Luke Hickman+2
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
- [S142] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 3rd ed. (London, U.K.: Burkes Peerage Ltd, 1912), page 319. Hereinafter cited as Landed Gentry of Ireland.
- [S37] BP2003. [S37]
Catherine Keightley1
Her married name became O’Brien.
Children of Catherine Keightley and Lucius O’Brien
- unknown daughter O’Brien1
- unknown daughter O’Brien1
- unknown son O’Brien1 b. a 1705
- Sir Edward O’Brien, 2nd Bt.+2 b. 7 Apr 1705, d. 26 Nov 1765
Rt. Hon. Thomas Keightley1,2 
He lived at Hartingfordbury, Hertfordshire, EnglandG.3 He held the office of Vice-Treasurer of Ireland.4
Child of Rt. Hon. Thomas Keightley and Lady Frances Hyde
- [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 295, says Knightley. Hereinafter cited as Burkes Extinct Peerage.
- [S1381] Cheryl Nicol, “re: Long Family,” e-mail message to British and European Nobility Register, 5 July 2005 to 14 May 2006. Hereinafter cited as “re: Long Family.”
- [S22] Burke, Burkes Extinct Peerage, page 295.
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
Lucia Hamilton1 
Her married name became O’Brien.
Child of Lucia Hamilton and Sir Donough O’Brien, 1st Bt.
- Lucius O’Brien+3 d. 6 Jan 1717
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
- [S323] Sir James Balfour Paul, The Scots Peerage: founded on Wood’s edition of Sir Robert Douglas’s The Peerage of Scotland (Edinburgh, Scotland: David Douglas, 1904), volume I, page 56. Hereinafter cited as The Scots Peerage.
- [S37] BP2003. [S37]
Kristin Annegret Bredemeier1
From 5 May 2005, her married name became Garson.1
Children of Kristin Annegret Bredemeier and Jeremy James Garson
- Magnus Gabriel Sonning Garson1 b. 29 Jun 2004
- Ambrose George Ludovic Garson1 b. 9 Feb 2006
- Laszlo Thaddeus Tobias Garson1 b. 14 Sep 2009
- [S3812] Jeremy Garson, “re: Garson Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 18 June 2009. Hereinafter cited as “re: Garson Family.”
Elizabeth Deane1 
From before 1677, her married name became Grey.1 Her married name became O’Brien.
Children of Elizabeth Deane and Sir Donough O’Brien, 1st Bt.
- Henry O’Brien+ d. 15 Jan 1723/24
- unknown daughter O’Brien1
- unknown daughter O’Brien1
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
Major Joseph Deane1 
He lived at Cromlin, County Dublin, IrelandG.1
Children of Major Joseph Deane
- Elizabeth Deane+1 d. 16 Jan 1683/84
- Edward Deane+2
- Joseph Deane+2 b. 6 Jan 1649, d. 8 Dec 1698
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
- [S142] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 3rd ed. (London, U.K.: Burkes Peerage Ltd, 1912), page 169. Hereinafter cited as Landed Gentry of Ireland.
Ann Patricia Moore1 
From 22 September 1944, her married name became Chenevix Trench.1
Children of Ann Patricia Moore and Captain John Gordon Chenevix Trench
- Jessica Chenevix-Trench+2 b. 15 Jul 1949, d. 22 Jan 1999
- Maxwell John Chenevix-Trench2 b. 17 Jun 1952
Mary ‘Rua’ MacMahon1
Her married name became Cooper.1 Mary ‘Rua’ MacMahon also went by the nick-name of ‘Rua’ (or in English, The Red-haired.)1 Her married name became O’Neylane.3 Her married name became O’Brien.
Child of Mary ‘Rua’ MacMahon and Daniel O’Neylane
- William O’Neylane+4 b. 1635, d. 1678
Children of Mary ‘Rua’ MacMahon and Colonel Connor McDonogh O’Brien
- Teig O’Brien+2 d. a 1678
- Honora O’Brien2
- Mary O’Brien2
- Slany O’Brien2
- Sir Donough O’Brien, 1st Bt.+2 b. 1642, d. 17 Nov 1717
- unknown son O’Brien1 b. a 1642
- unknown son O’Brien1 b. a 1642
- [S37] BP2003 volume 2, page 2036. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S232] John O’Hart, Irish Pedigrees (Dublin, Ireland: n.pub., 1915), volume 1, page 150. Hereinafter cited as Irish Pedigrees.
- [S2476] Tim Petroff, “re: O’Neylane Family,” e-mail message to BENR, 17 October 2007. Hereinafter cited as “re: O’Neylane Family.”