Edmund Trevor Lloyd Williams1 
He held the office of Justice of the Peace (J.P.) for Buckinghamshire.3 He held the office of Justice of the Peace (J.P.) for Merionethshire.3
Child of Edmund Trevor Lloyd Williams and Alice Le Poer Fullerton
- Catherine Trevor Williams+ b. 1904, d. 1966
- [S264] David Gardiner, online unknown url, David Gardiner (unknown location), downloaded 5 March 2007.
- [S2332] Strotbaum, “re: Williams Family,” e-mail message to BENR, 19 June 2007. Hereinafter cited as “re: Williams Family.”
- [S37] BP2003 volume 3, page 4176. See link for full details for this source. Hereinafter cited as. [S37]
Leonard Llewellyn Bulkeley Williams1 
He graduated with a Doctor of Medicine (M.D.)2
Alice Helena Alexander Williams1 
She was appointed Commander, Order of the British Empire (C.B.E.)2
Sir Michael Osmond Williams, 2nd Bt.1 
Sir Michael Osmond Williams, 2nd Bt. usually went by his middle name of Osmond.3 He was educated at Eton College, Windsor, Berkshire, England.1 He succeeded as the 2nd Baronet Williams, of Cashell Deudraeth and Borthwen, co. Merioneth [U.K., 1909] on 28 January 1927.1 He was educated at Freiburg University, Freiburg, Germany.1 He gained the rank of Major in the Royal Scots Guards.1 He fought in the Second World War.1 He was awarded the Military Cross (M.C.) in 1944.1 He held the office of Justice of the Peace (J.P.) in 1960.1 He lived in 2003 at Borthwen, Minffordd, Penrhyndeudraeth, Gwynedd, Wales.1 On his death, his baronetcy became extinct.2
Children of Sir Michael Osmond Williams, 2nd Bt. and Benitha Mary Booker
- Sarah Theresa Ceridwen Williams1 b. 29 Aug 1948
- Julia Mary Myfanwy Williams1 b. 13 Apr 1952
- [S37] BP2003 volume 3, page 4176. 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.
- [S37] BP2003. [S37]
David Osmond Deudraeth Williams1 
Benitha Mary Booker1 
From 12 July 1947, her married name became Williams.1
Children of Benitha Mary Booker and Sir Michael Osmond Williams, 2nd Bt.
- Sarah Theresa Ceridwen Williams1 b. 29 Aug 1948
- Julia Mary Myfanwy Williams1 b. 13 Apr 1952
- [S37] BP2003 volume 3, page 4176. See link for full details for this source. Hereinafter cited as. [S37]
Evelyn Olwen Williams1 
From 23 July 1918, her married name became Smyth.
Child of Evelyn Olwen Williams and Maj.-Gen. Sir Nevill Maskelyne Smyth, V.C.
- Commodore Dacre Henry Deudraeth Smyth3 b. 5 May 1923, d. 3 Dec 2008
- [S264] David Gardiner, online unknown url, David Gardiner (unknown location), downloaded 5 March 2007.
- [S37] BP2003 volume 3, page 4177. See link for full details for this source. Hereinafter cited as. [S37]
- [S7538] Anonymous, “re: Syme Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 13 April 2015. Hereinafter cited as “re: Syme Family.”
Lawrence Trevor Greaves Williams1 
He gained the rank of Captain in the Army Service Corps.2 He fought in the First World War.2
Annie Salizma Loveday Williams1

- [S264] David Gardiner, online unknown url, David Gardiner (unknown location), downloaded 5 March 2007.