Hon. Denys George Finch-Hatton1 
He graduated from Oxford University, Oxford, Oxfordshire, England, with a Bachelor of Arts (B.A.)1 He fought in the First World War, where he was mentioned in dispatches.1 He gained the rank of Temporary Captain in the East African Protectorate Forces.1 He was awarded the Military Cross (M.C.)1
Lady Gladys Margaret Finch-Hatton1 
Her married name became Williams.
Children of Lady Gladys Margaret Finch-Hatton and Captain Osmond Trahairn Deudraeth Williams
- Sir Michael Osmond Williams, 2nd Bt.+2 b. 22 Apr 1914, d. 19 Dec 2012
- Elizabeth Anne Williams2 b. 28 Aug 1915
Captain Osmond Trahairn Deudraeth Williams1

He gained the rank of Lieutenant in the 19th Hussars.3 He fought in the Boer War between 1901 and 1902.3 He gained the rank of Captain in the Welsh Guards.1 He fought in the First World War, where he was mentioned in dispatches three times.3 He was awarded the Distinguished Service Order (D.S.O.)1
Children of Captain Osmond Trahairn Deudraeth Williams and Lady Gladys Margaret Finch-Hatton
- Sir Michael Osmond Williams, 2nd Bt.+3 b. 22 Apr 1914, d. 19 Dec 2012
- Elizabeth Anne Williams3 b. 28 Aug 1915
Sir Arthur Osmund Williams, 1st Bt. 
Sir Arthur Osmund Williams, 1st Bt. usually went by his middle name of Osmond.2 He was educated at Eton College, Windsor, Berkshire, England.2 He gained the rank of Colonel in the Merionethshire Voluntary Regiment.2 He held the office of Constable of Harlech Castle.2 He held the office of Deputy Lieutenant (D.L.) of Caernarvonshire.2 He held the office of Justice of the Peace (J.P.) for Caernarvonshire.2 He held the office of Member of Parliament (M.P.) (Liberal) for Merionethshire between 1900 and 1910.2 He held the office of Lord-Lieutenant of Merionethshire between 1909 and 1927.2 He was created 1st Baronet Williams, of Cashell Deudraeth and Borthwen, co. Merioneth [U.K.] on 28 July 1909.3
Children of Sir Arthur Osmund Williams, 1st Bt. and Frances Evelyn Greaves
- David Osmond Deudraeth Williams1 b. 6 Feb 1882, d. 18 Mar 1882
- Captain Osmond Trahairn Deudraeth Williams+2 b. 26 Feb 1883, d. 30 Sep 1915
- Evelyn Olwen Williams+1 b. 24 May 1884, d. 29 Sep 1960
- Lawrence Trevor Greaves Williams1 b. 26 Aug 1885, d. 26 Jul 1930
- Annie Salizma Loveday Williams1 b. 14 Nov 1891
- Ellen Dolga Dormie Williams1 b. 14 Nov 1891
Frances Evelyn Greaves 
Her married name became Williams.
Children of Frances Evelyn Greaves and Sir Arthur Osmund Williams, 1st Bt.
- David Osmond Deudraeth Williams1 b. 6 Feb 1882, d. 18 Mar 1882
- Captain Osmond Trahairn Deudraeth Williams+3 b. 26 Feb 1883, d. 30 Sep 1915
- Evelyn Olwen Williams+1 b. 24 May 1884, d. 29 Sep 1960
- Lawrence Trevor Greaves Williams1 b. 26 Aug 1885, d. 26 Jul 1930
- Annie Salizma Loveday Williams1 b. 14 Nov 1891
- Ellen Dolga Dormie Williams1 b. 14 Nov 1891
- [S264] David Gardiner, online unknown url, David Gardiner (unknown location), downloaded 5 March 2007.
- [S2226] Lawless Bethune, “re: Bethune Family,” e-mail message to www.peerage.org.uk, 27 March 2007. Hereinafter cited as “re: Bethune Family.”
- [S37] BP2003 volume 3, page 4177. See link for full details for this source. Hereinafter cited as. [S37]
John Whitehead Greaves 
He held the office of Deputy Lieutenant (D.L.)2 He lived at Bericote, Warwickshire, EnglandG.
Children of John Whitehead Greaves and Ellen Stedman
- Edward Seymour Greaves+1 b. 1 Nov 1849, d. b 1911
- Ellen Mabel Greaves+1 b. 1 Jun 1851
- Frances Evelyn Greaves+ b. c 1855, d. 10 Aug 1926
Christopher Guy Heneage Finch-Hatton, 15th Earl of Winchilsea 
He was educated at Eton College, Windsor, Berkshire, England.1 He gained the rank of Lieutenant in the Royal Naval; Volunteer Reserve.1 He fought in the Second World War.1 He succeeded as the 10th Baronet Finch [E., 1660] on 10 February 1939.2 He succeeded as the 10th Earl of Nottingham [E., 1681] on 10 February 1939.2 He succeeded as the 16th Baronet Finch, of Eastwell, Kent [E., 1611] on 10 February 1939.2 He succeeded as the 15th Viscount of Maidstone [E., 1623] on 10 February 1939.2 He succeeded as the 15th Earl of Winchilsea [E., 1556] on 10 February 1939.2 He succeeded as the 10th Baron Finch of Daventry, co. Northampton [E., 1674] on 10 February 1939.2
Children of Christopher Guy Heneage Finch-Hatton, 15th Earl of Winchilsea and Countess Gladys Széchényi
- Christopher Denys Stormont Finch-Hatton, 16th Earl of Winchilsea+1 b. 17 Nov 1936, d. 26 Jun 1999
- Hon. Robin Heneage Finch-Hatton+1 b. 1 Nov 1939, d. 25 Dec 2018
Countess Gladys Széchényi
Her married name became Finch-Hatton. After her marriage, Countess Gladys Széchényi was styled as Countess of Winchilsea on 10 February 1939.
Children of Countess Gladys Széchényi and Christopher Guy Heneage Finch-Hatton, 15th Earl of Winchilsea
- Christopher Denys Stormont Finch-Hatton, 16th Earl of Winchilsea+2 b. 17 Nov 1936, d. 26 Jun 1999
- Hon. Robin Heneage Finch-Hatton+2 b. 1 Nov 1939, d. 25 Dec 2018
William Thornhill Cator1 
Agnes Mary Conroy 
After her marriage, Agnes Mary Conroy was styled as Countess of Winchilsea on 17 June 1946. From 17 June 1946, her married name became Finch-Hatton.