Edith Dorothy Vickers1 
Her married name became Pleydell-Bouverie.
Children of Edith Dorothy Vickers and Hon. Stuart Pleydell-Bouverie
- Christopher Pleydell-Bouverie+1 b. 4 Nov 1901, d. 26 Jun 1949
- Albert Laurence Pleydell-Bouverie1 b. 8 Mar 1904, d. 2 Jan 1949
- Major Michael Pleydell-Bouverie1 b. 24 Nov 1907, d. 31 Dec 1963
- David Pleydell-Bouverie1 b. 20 Apr 1911, d. 5 Dec 1994
- [S37] BP2003 volume 3, page 3251. See link for full details for this source. Hereinafter cited as. [S37]
Albert Vickers1 
Child of Albert Vickers
- Edith Dorothy Vickers+1 d. 14 Nov 1949
- [S37] BP2003 volume 3, page 3251. See link for full details for this source. Hereinafter cited as. [S37]
Julian Eleanor Adelaide Balfour1 
She held the office of Justice of the Peace (J.P.)1 Her married name became Pleydell-Bouverie. After her marriage, Julian Eleanor Adelaide Balfour was styled as Countess of Radnor on 3 June 1900.
Children of Julian Eleanor Adelaide Balfour and Jacob Pleydell-Bouverie, 6th Earl of Radnor
- Lady Jeane Pleydell-Bouverie+1 b. 23 Mar 1892
- Lady Katherine Pleydell-Bouverie+1 b. 16 May 1894, d. 1 Nov 1961
- William Pleydell-Bouverie, 7th Earl of Radnor+1 b. 18 Dec 1895, d. 23 Nov 1968
- Lady Elizabeth Pleydell-Bouverie1 b. 27 Jun 1897, d. 7 Jul 1982
- Captain Hon. Edward Pleydell-Bouverie+1 b. 10 Sep 1899, d. 5 May 1951
- Hon. Bartholemew Pleydell-Bouverie+1 b. 6 Apr 1902, d. 31 Oct 1965
- Lady Margaret Pleydell-Bouverie+1 b. 26 Jun 1903, d. 17 Sep 2002
- Hon. Anthony Pleydell-Bouverie1 b. 26 Mar 1905, d. 25 Jun 1961
- Lady Helen Pleydell-Bouverie+1 b. 2 Jan 1908, d. 2 Apr 2003
- Hon. Peter Pleydell-Bouverie+1 b. 19 Oct 1909, d. 1981
Charles Balfour1 
He lived at Newton Don, Roxburghshire, ScotlandG.
Child of Charles Balfour and Hon. Adelaide Barrington
- Captain Charles Barrington Balfour+ b. 20 Feb 1862, d. 31 Aug 1921
Child of Charles Balfour and Minnie Georgiana Liddell
- Julian Eleanor Adelaide Balfour+1 d. 5 Jan 1946
Helena Olivia Adeane1 
Her married name became Pleydell-Bouverie. After her marriage, Helena Olivia Adeane was styled as Countess of Radnor on 26 June 1930. From 25 January 1943, her married name became Selby-Lowndes.1
Children of Helena Olivia Adeane and William Pleydell-Bouverie, 7th Earl of Radnor
- Lady Jane Pleydell-Bouverie+2 b. 14 Sep 1923, d. 21 Jul 2006
- Lady Belinda Pleydell-Bouverie+2 b. 15 Jan 1925, d. 29 Jul 1961
- Jacob Pleydell-Bouverie, 8th Earl of Radnor+2 b. 10 Nov 1927, d. 11 Aug 2008
- Hon. Reuben Pleydell-Bouverie+2 b. 30 Dec 1930, d. 19 Aug 2020
- Lady Phoebe Pleydell-Bouverie+2 b. 25 Jan 1932, d. 1995
- Lady Harriot Pleydell-Bouverie+2 b. 18 Dec 1935, d. 5 Jan 2024
Jasper John Pleydell-Bouverie1
He was a journalist.2 He lived in 2003 at 13 Christchurch Way, Greenwich, London, England.2
Children of Jasper John Pleydell-Bouverie and Katherine Jane Pelly
- Josiah Edwin Pleydell-Bouverie2 b. 16 Nov 1997
- Rufus Noah Pleydell-Bouverie2 b. 16 Nov 1997
- Honor Phoebe Constance Pleydell-Bouverie2 b. 25 May 2000
Jacob Pleydell-Bouverie, 8th Earl of Radnor1 
He was educated at Harrow School, Harrow, London, England.1 He graduated from Trinity College, Cambridge University, Cambridge, Cambridgeshire, England, in 1950 with a Bachelor of Arts (B.A.)1 He succeeded as the 11th Baronet des Bouverie, of St. Catherine Cree Church, London [G.B., 1714] on 23 November 1968.2 He succeeded as the 8th Earl of the county of Radnor [G.B., 1765] on 23 November 1968.2 He succeeded as the 8th Baron Pleydell-Bouverie of Coleshill, co. Berks [G.B., 1765] on 23 November 1968.2 He succeeded as the 9th Lord Longford, Baron of Longford, co. Wilts [G.B., 1747] on 23 November 1968.2 He succeeded as the 9th Viscount Folkestone, of Folkestone, co. Kent [G.B., 1747] on 23 November 1968.2
Children of Jacob Pleydell-Bouverie, 8th Earl of Radnor and Anne Garden Farquaharson Seth-Smith
- William Pleydell-Bouverie, 9th Earl of Radnor+1 b. 5 Jan 1955
- Hon. Peter John Pleydell-Bouverie+1 b. 14 Jan 1958
Children of Jacob Pleydell-Bouverie, 8th Earl of Radnor and Margaret Robin Fleming
- Lady Martha Pleydell-Bouverie1 b. 6 May 1964
- Lady Lucy Pleydell-Bouverie1 b. 6 May 1964
- Lady Belinda Pleydell-Bouverie1 b. 9 Nov 1966
- Lady Frances Pleydell-Bouverie1 b. 24 Oct 1973
- [S37] BP2003 volume 3, page 3248. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
Anne Garden Farquaharson Seth-Smith1
Her married name became Pleydell-Bouverie. From 1962, her married name became Cox.1
Children of Anne Garden Farquaharson Seth-Smith and Jacob Pleydell-Bouverie, 8th Earl of Radnor
- William Pleydell-Bouverie, 9th Earl of Radnor+1 b. 5 Jan 1955
- Hon. Peter John Pleydell-Bouverie+1 b. 14 Jan 1958
- [S37] BP2003 volume 3, page 3248. See link for full details for this source. Hereinafter cited as. [S37]
Donald Farquaharson Seth-Smith1 
He was awarded the Military Cross (M.C.)1 He lived at Whitsbury Cross, Hampshire, EnglandG.1 He lived at Njoro, KenyaG.1
Children of Donald Farquaharson Seth-Smith
- Anne Garden Farquaharson Seth-Smith+1
- Antony Martin Donald Seth-Smith+2 b. 5 Feb 1937
William Pleydell-Bouverie, 9th Earl of Radnor
He was educated at Harrow School, Harrow, London, England.1 He was styled as Viscount Folkestone between 1968 and 2008. He was educated at Royal Agricultural College, Cirencester, Gloucestershire, England.1 He lived in 2003 at Alward House, Alderbury, Wiltshire, England.1 He succeeded as the 10th Viscount Folkestone, of Folkestone, co. Kent [G.B., 1747] on 11 August 2008. He succeeded as the 9th Earl of the county of Radnor [G.B., 1765] on 11 August 2008.2 He succeeded as the 10th Lord Longford, Baron of Longford, co. Wilts [G.B., 1747] on 11 August 2008. He succeeded as the 12th Baronet des Bouverie, of St. Catherine Cree Church, London [G.B., 1714] on 11 August 2008. He succeeded as the 9th Baron Pleydell-Bouverie of Coleshill, co. Berks [G.B., 1765] on 11 August 2008.
Children of William Pleydell-Bouverie, 9th Earl of Radnor and Melissa Stanford
- Lady Hope Pleydell-Bouverie1 b. 4 Nov 1997
- Jacob Pleydell-Bouverie, Viscount Folkestone1 b. 7 Apr 1999
- Hon. Luke Pleydell-Bouverie1 b. 16 Jun 2000
- Hon. Dan Pleydell-Bouverie1 b. 26 Jul 2002
- Hon. Edward Pleydell-Bouverie3 b. 2004
- Lady unknown daughter Pleydell-Bouverie3 b. 24 Sep 2007
- [S37] BP2003 volume 3, page 3248. 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.
- [S466] Notices, The Telegraph, London, UK, 27 September 2007. Hereinafter cited as The Telegraph.