Penelope Mary Gibbs1
From 1970, her married name became Dale.1 From 28 September 1985, her married name became Douglas-Riley.1 She lived in 2003 at Restormel Manor, Lostwithiel, Cornwall, England.1
Children of Penelope Mary Gibbs and Surgn.-Cdre. Timothy Roger Douglas-Riley
- Henrietta Lucia Douglas-Riley1 b. 19 Feb 1987
- Venetia Louise Douglas-Riley1 b. 15 Dec 1988
- [S37] BP2003 volume 2, page 2803. See link for full details for this source. Hereinafter cited as. [S37]
Frederick Archibald Charles Thellusson, 6th Baron Rendlesham of Rendlesham1 
He was educated at Eton College, Windsor, Berkshire, England.2 He gained the rank of Captain between 1890 and 1893 in the Suffolk Artillery Militia.2 He gained the rank of Temporary Major in the 4th Battalion, Suffolk Volunteer Regiment.2 He succeeded as the 6th Baron Rendlesham of Rendlesham [I., 1806] on 9 November 1911.1 He held the office of High Sheriff of Suffolk in 1916.2
Percy Edward Thellusson, 7th Baron Rendlesham of Rendlesham1 
He gained the rank of Captain in the West Kent Yeomanry.2 He was Aide-de-Camp, Personal Staff between 1918 and 1919.2 He succeeded as the 7th Baron Rendlesham of Rendlesham [I., 1806] on 4 July 1938.1
Frederick Thellusson, 4th Baron Rendlesham of Rendlesham1

He succeeded as the 4th Baron Rendlesham of Rendlesham [I., 1806] on 13 September 1839.1 He held the office of Member of Parliament (M.P.) (Conservative) for East Suffolk between 1843 and 1852.2 He held the office of Deputy Lieutenant (D.L.) of Suffolk.2
Children of Frederick Thellusson, 4th Baron Rendlesham of Rendlesham and Elizabeth Charlotte Prescott
- Hon. Anne Blanche Thellusson2 d. 26 Mar 1886
- Frederick William Brook Thellusson, 5th Baron Rendlesham of Rendlesham+2 b. 9 Feb 1840, d. 9 Nov 1911
Elizabeth Charlotte Prescott1 
From 22 February 1827, her married name became Duff.2 Her married name became Thellusson. After her marriage, Elizabeth Charlotte Prescott was styled as Baroness Rendlesham of Rendlesham on 13 September 1839.
Children of Elizabeth Charlotte Prescott and Sir James Duff
- Eliza Georgiana Duff+ b. 2 Feb 1829, d. 4 Aug 1918
- Louisa Duff+2 b. c 1830, d. 21 Aug 1895
- Major James Duff+2 b. 21 Jul 1831, d. 23 Dec 1878
- Alfred Alexander Duff2 b. 13 Sep 1833, d. 29 Nov 1857
Children of Elizabeth Charlotte Prescott and Frederick Thellusson, 4th Baron Rendlesham of Rendlesham
- Hon. Anne Blanche Thellusson1 d. 26 Mar 1886
- Frederick William Brook Thellusson, 5th Baron Rendlesham of Rendlesham+1 b. 9 Feb 1840, d. 9 Nov 1911
- [S37] BP2003 volume 3, page 3318. See link for full details for this source. Hereinafter cited as. [S37]
- [S1438] Sir William, Bt. Arbuthnot, “re: Arbuthnot and Duff Families,” e-mail message to British and European Nobility Register, 29 August 2005 and later. Hereinafter cited as “re: Arbuthnot and Duff Families.”
Emily Prestige1
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Hon. Anne Blanche Thellusson1 
- [S37] BP2003 volume 3, page 3318. See link for full details for this source. Hereinafter cited as. [S37]
Charlotte Ward1 
From 1884, her married name became Preschlin.1
- [S8] BP1999 volume 1, page 181. See link for full details for this source. Hereinafter cited as. [S8]
Peter Isaac Thellusson, 1st Baron Rendlesham of Rendlesham1 
He was Director of the Bank of England between 1787 and 1806.1 He was Member of Parliament (M.P.) (Tory) for Midhurst from 1795 to 1796.1 He held the office of Member of Parliament (M.P.) (Tory) for Malmesbury between 1796 and 1802.1 He held the office of Member of Parliament (M.P.) (Tory) for Castle Rising between 1802 and 1806.1 He was created 1st Baron Rendlesham of Rendlesham [Ireland] on 1 February 1806.1 He held the office of Member of Parliament (M.P.) (Tory) for Bossiney from 1807 to 1808.1
Children of Peter Isaac Thellusson, 1st Baron Rendlesham of Rendlesham and Elizabeth Eleanor Cornwall
- John Thellusson, 2nd Baron Rendlesham of Rendlesham+1 b. 12 Sep 1785, d. 3 Jul 1832
- Lieutenant Hon. George Thellusson1 b. 1791, d. 21 Jun 1813
- Frederick Thellusson, 4th Baron Rendlesham of Rendlesham+1 b. 6 Jan 1798, d. 6 Apr 1852
- William Thellusson, 3rd Baron Rendlesham of Rendlesham1 b. 6 Jan 1798, d. 13 Sep 1839
- Hon. Arthur Thellusson+1 b. 10 Dec 1801, d. 15 Jul 1858
- [S37] BP2003 volume 3, page 3317. See link for full details for this source. Hereinafter cited as. [S37]
Elizabeth Eleanor Cornwall1 
Her married name became Thellusson. After her marriage, Elizabeth Eleanor Cornwall was styled as Baroness Rendlesham of Rendlesham on 1 February 1806.
Children of Elizabeth Eleanor Cornwall and Peter Isaac Thellusson, 1st Baron Rendlesham of Rendlesham
- John Thellusson, 2nd Baron Rendlesham of Rendlesham+1 b. 12 Sep 1785, d. 3 Jul 1832
- Lieutenant Hon. George Thellusson1 b. 1791, d. 21 Jun 1813
- Frederick Thellusson, 4th Baron Rendlesham of Rendlesham+1 b. 6 Jan 1798, d. 6 Apr 1852
- William Thellusson, 3rd Baron Rendlesham of Rendlesham1 b. 6 Jan 1798, d. 13 Sep 1839
- Hon. Arthur Thellusson+1 b. 10 Dec 1801, d. 15 Jul 1858
- [S37] BP2003 volume 3, page 3317. See link for full details for this source. Hereinafter cited as. [S37]