Sara Margaret Helen Platt 
Her married name became Williams.
Children of Sara Margaret Helen Platt and Sir Lawrence Hugh Williams, 9th Bt.
- Emma Louise Williams+4 b. 5 Jun 1961
- Antonia Margaret Williams+4 b. 4 Mar 1963
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003 volume 3, page 4173. See link for full details for this source. Hereinafter cited as. [S37]
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
- [S37] BP2003. [S37]
Sir Harry Platt, 1st Bt. 

Sir Harry Platt, 1st Bt. was born on 7 October 1886. He married Gertrude Sarah Turnley.2 He died in 1988.2
He was created 1st Baronet Platt [U.K.]. He was a professor.3
Child of Sir Harry Platt, 1st Bt. and Gertrude Sarah Turnley
- Sara Margaret Helen Platt+ b. 19 Dec 1927, d. 14 Nov 2016
- [S140] National Portrait Gallery, London, online http://www.npg.org.uk. Hereinafter cited as National Portrait Gallery.
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S37] BP2003 volume 3, page 4173. See link for full details for this source. Hereinafter cited as. [S37]
Emma Louise Playfair
- [S212] Obituaries, The Independent, London, U.K.. Hereinafter cited as The Independent.
Penelope Lawrence Williams 
Tiverton.1 Devon.1 She lived The Beacon.1 Her married name became Corrigan.
Child of Penelope Lawrence Williams and Major Thomas William Edward Corrigan
- Henrietta Louise Corrigan b. 10 Sep 1954
Major Thomas William Edward Corrigan 
He gained the rank of Major in the Queen’s Bays.2 He was appointed Member, Order of the British Empire (M.B.E.)2
Child of Major Thomas William Edward Corrigan and Penelope Lawrence Williams
- Henrietta Louise Corrigan1 b. 10 Sep 1954
Thomas William Edward Corrigan1 
He lived at The Beacon, Tiverton, Devon, EnglandG.1
Child of Thomas William Edward Corrigan
- Major Thomas William Edward Corrigan+1 d. 25 Aug 1961
- [S37] BP2003 volume 3, page 4173. See link for full details for this source. Hereinafter cited as. [S37]
Henrietta Louise Corrigan
She lived in 2003 at Parciau, Marianglas, Anglesey, Wales.1
Anna-Theodora del Fabro1
From 23 June 2000, her married name became Mansel-Pleydell.1
Children of Anna-Theodora del Fabro and Toby Edmond Luard Morton Mansel-Pleydell
- John Mansel-Pleydell1 b. 3 Jan 2003
- Theodore Mansel-Pleydell1 b. 3 Jan 2003
- Henry Mansel-Pleydell1 b. 3 Jun 2004
- [S466] Notices, The Telegraph, London, UK. Hereinafter cited as The Telegraph.
Owen John Williams 
He gained the rank of Captain in the Denbighshire Yeomanry Cavalry.1 He held the office of Justice of the Peace (J.P.) for Denbighshire.1
Robert ap Hugh Williams 
He held the office of High Sheriff of Anglesey in 1884.1 He held the office of Justice of the Peace (J.P.) of Anglesey.1 He held the office of Deputy Lieutenant (D.L.) of Anglesey.1 He gained the rank of Honorary Lieutenant-Colonel in the Royal Anglesey Militia.1 He lived at Plas Llwyn On, Anglesey, WalesG.1