Katherine Tregoning1
From 1810, her married name became Thomas.1
Child of Katherine Tregoning and James Miller Lewes Thomas
- James Lewes Thomas+1 b. 8 Mar 1818, d. 5 Oct 1875
- [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 68. Hereinafter cited as The New Extinct Peerage.
Charles Tregoning1
Child of Charles Tregoning
- [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 68. Hereinafter cited as The New Extinct Peerage.
John Weston Goss1
Child of John Weston Goss
- [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 68. Hereinafter cited as The New Extinct Peerage.
Anne Louisa Purdon1
From 28 October 1898, her married name became Thomas.1
Children of Anne Louisa Purdon and James Lewes Thomas
- James Purdon Lewes Thomas, 1st and last Viscount Cilcennin1 b. 13 Oct 1903, d. 13 Jul 1960
- Joan Philippa Thomas1 b. 1 May 1906
- [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 68. Hereinafter cited as The New Extinct Peerage.
- [S47] BIFR1976 page 975. See link for full details for this source. Hereinafter cited as. [S47]
Arabella Casaubon1
From 19 October 1715, her married name became Purdon.1
Children of Arabella Casaubon and George Purdon
- Margaret Purdon+1
- Arabella Purdon+1
- William Casaubon Purdon+1 b. 26 Dec 1752, d. 1 Feb 1836
- [S47] BIFR1976 page 975. See link for full details for this source. Hereinafter cited as. [S47]
Joan Philippa Thomas1
- [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 68. Hereinafter cited as The New Extinct Peerage.
Thomas Andrews1
Child of Thomas Andrews
- Clementina Janet Andrews+1 d. 9 Jul 1903
- [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 68. Hereinafter cited as The New Extinct Peerage.
- [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 586. Hereinafter cited as Landed Gentry of Ireland.
Captain Robert Lushington Reilly1,2 
- [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 68. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 3, page 3377. See link for full details for this source. Hereinafter cited as. [S37]
John Louis Emil Dreyer1 
He graduated with a Doctor of Philosophy (Ph.D.)2 He was director of the Armagh Observatory.1
Children of John Louis Emil Dreyer and Katherine Hannah Tuthill
- Maj.-Gen. John Tuthill Dreyer+2 b. 1877, d. 1959
- Lt.-Col. George Villiers Dreyer3 b. c 1884, d. 18 Jun 1965
Child of John Louis Emil Dreyer
- Admiral Frederic Charles Dreyer+1 b. 8 Jan 1878, d. 12 Dec 1956
- [S1541] Beatrice Potter, “re: Lady Isabella Somerset,” e-mail message to BENR, 30 November 2005. Hereinafter cited as “re: Isabella Somerset.”
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S35] BLG1965 volume 2, page 386. See link for full details for this source. Hereinafter cited as. [S35]
John Christopher Dreyer1
Child of John Christopher Dreyer
- John Louis Emil Dreyer+1 b. 13 Feb 1852, d. 14 Sep 1926
