William Hay, 17th Earl of Erroll1 
He was given the name of William Hay at birth.2 On 28 March 1795 his name was legally changed to William Carr by Royal Licence.1 He forfeited his maternal grandfather’s bequest of Etal on succeeding to the Earldom.1 He succeeded as the 17th Earl of Erroll [S., 1452] on 14 July 1798.1 He succeeded as the 18th Lord Hay [S., 1430] on 14 July 1798.1 He held the office of Lord High Commissioner [Scotland].1 He held the office of Knight Marischal [Scotland] in 1805.1 He held the office of Representative Peer [Scotland] in 1806.1
Child of William Hay, 17th Earl of Erroll and Jane Bell
- Lady Dulcibella Jane Hay+1 b. c 1794, d. 10 Jan 1885
Children of William Hay, 17th Earl of Erroll and Alicia Eliot
- Lady Emma Hay+2 d. 17 Jul 1841
- Lady Harriet Jemima Hay+2 d. 8 Feb 1837
- Lady Caroline Augusta Hay+2 d. 19 Aug 1877
- James Hay, Lord Hay1 b. c 1797, d. 16 Jun 1815
- Lady Isabella Margaret Hay+1 b. 22 Feb 1800, d. 28 Jul 1868
- William George Hay, 18th Earl of Erroll+1 b. 21 Feb 1801, d. 19 Apr 1846
- Captain Hon. Samuel Hay1 b. Jan 1807, d. 25 Nov 1847
Children of William Hay, 17th Earl of Erroll and Hon. Harriet Somerville
- Lady Fanny Hay+2 d. 28 Aug 1853
- Rev. Hon. Somerville Hay+2 b. 20 Jul 1817, d. 25 Sep 1853
- Lady Margaret Julia Hay+2 b. a Jan 1819, d. 31 Oct 1891
Sir Edward Ernest Pearson1 
He held the office of Justice of the Peace (J.P.)1 He lived at Brickendonbury, Hertfordshire, EnglandG.
Child of Sir Edward Ernest Pearson
- Perena Grace Pearson+1 d. 1985
David Wemyss of that Ilk1
He was educated at Eton College, Windsor, Berkshire, England.1 He was educated at Magdalene College, Cambridge University, Cambridge, Cambridgeshire, England.1 He gained the rank of Captain in the Royal Signals.1 He fought in the Second World War.1 He held the position of Chief of the Name and Arms of Wemyss from in 1982.1 He lived in 2003 at Invermay, Forteviot, Perthshire, Scotland.1
Children of David Wemyss of that Ilk and Lady Jean Christian Bruce
- Michael James Wemyss of that Ilk, younger+1 b. 10 Nov 1947
- Charles John Wemyss+1 b. 26 Jul 1952
Andrew Michael John Wemyss1
He was educated at Eton College, Windsor, Berkshire, England.1 He lived in 2003 at Torrie House, Newmills, Dunfermline, Fife, England.1
Children of Andrew Michael John Wemyss and Janet Althea Scott
- Isabella Alethea Wemyss1 b. 22 Feb 1968
- William John Wemyss2 b. 8 Oct 1970
Mary Millicent Erskine-Wemyss1 
Her married name became Long.
- [S37] BP2003 volume 3, page 4125. See link for full details for this source. Hereinafter cited as. [S37]
Ernest Caswell Long
He gained the rank of Lieutenant in the Grenadier Guards.2 Ernest Caswell Long also went by the nick-name of Boy.1
- [S9410] Simon Roberts, “re: Long Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 28 July 2021. Hereinafter cited as “re: Long Family.”
- [S37] BP2003 volume 3, page 4125. See link for full details for this source. Hereinafter cited as. [S37]
- [S9409] Alex Carpenter, “re: Bury Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 28 July 2021. Hereinafter cited as “re: Bury Family.”
William Henry Wellesley, 2nd Earl Cowley1 
He was educated in 1850 at Eton College, Windsor, Berkshire, EnglandG.1 He gained the rank of Lieutenant in 1852 in the Coldstream Guards.1 He gained the rank of Captain in 1854.1 He fought in the Crimean War.1 He fought in the Oude Campaign in 1858.1 He was awarded the Order of the Medjidie of Turkey in 1858 5th Class.1 He was Military Secretary to the Governor of Bombay in 1859.1 He was Lieutenant-Colonel of the Coldstream Guards between 1860 and 1863.2 He succeeded as the 2nd Earl Cowley [U.K., 1857] on 15 July 1884.1 He succeeded as the 2nd Viscount Dangan, co. Meath [U.K., 1857] on 15 July 1884.1 He succeeded as the 3rd Baron Cowley of Wellesley [U.K., 1828] on 15 July 1884.1
Children of William Henry Wellesley, 2nd Earl Cowley and Emily Gwendoline Williams
- Lady Eva Cecilia Margaret Wellesley3 d. 4 Mar 1948
- Henry Arthur Mornington Wellesley, 3rd Earl Cowley+2 b. 14 Jan 1866, d. 15 Jan 1919
- [S6] G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed., 13 volumes in 14 (1910-1959; reprint in 6 volumes, Gloucester, U.K.: Alan Sutton Publishing, 2000), volume III, page 481. Hereinafter cited as The Complete Peerage.
- [S6] Cokayne, and others, The Complete Peerage, volume III, page 482.
- [S37] BP2003 volume 1, page 936. See link for full details for this source. Hereinafter cited as. [S37]
Hugo Erskine-Wemyss 
He was Honourable Attaché with the Diplomatic Service.1
- [S37] BP2003 volume 3, page 4125. See link for full details for this source. Hereinafter cited as. [S37]
Admiral Rosslyn Erskine Erskine-Wemyss, 1st and last Baron Wester Wemyss1 
He was educated at Farnborough School, Nottingham, Nottinghamshire, EnglandG.1 He was commissioned in 1877, in the service of the Royal Navy.1 He was educated at Cambridge University, Cambridge, Cambridgeshire, England.2 He gained the rank of Lieutenant in 1897.1 He gained the rank of Commander in 1898.1 He gained the rank of Captain in 1901.1 He was appointed Member, Royal Victorian Order (M.V.O.) in 1901.2 He was commander in 1903 at Royal Naval College, Osborne, Isle of Wight, EnglandG.1 He was commander in 1905 at Royal Naval College, Dartmouth, Devon, EnglandG.1 He was Commodore of the Royal Navy Barracks, Devonport between 1909 and 1911.1 He was appointed Companion, Order of St. Michael and St. George (C.M.G.) in 1911.1 He held the office of Extra Equerry to HM George V.2 He was Rear-Admiral of the Second Battle Squadron between 1912 and 1913.1 He fought in the First World War, including the Gallipoli landings.1 He gained the rank of Vice-Admiral in 1916.1 He was appointed Knight Commander, Order of the Bath (K.C.B.) in 1916.1 He was Commander-in-Chief of the Egypt and East Indies between 1916 and 1917.1 He held the office of Sea Lord of the Admiralty in 1917.1 He held the office of Chief of Naval Staff between 1917 and 1919.1 He was appointed Knight Grand Cross, Order of the Bath (G.C.B.) in 1918.1 He gained the rank of Admiral of the Fleet in 1919.1 He was created 1st Baron Wester Wemyss, of Wemyss, co. Fife [U.K.] on 18 November 1919.1 He wrote the book The Navy in the Dardenelles, published 1924.1 He lived at Wemyss, Fife, ScotlandG.
Child of Admiral Rosslyn Erskine Erskine-Wemyss, 1st and last Baron Wester Wemyss and Victoria Morier
- Hon. Alice Elizabeth Millicent Erskine-Wemyss1 b. 1906, d. 31 Dec 1994
- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 292. Hereinafter cited as The New Extinct Peerage.
- [S37] BP2003 volume 3, page 4125. See link for full details for this source. Hereinafter cited as. [S37]
Victoria Morier1 
Her married name became Erskine-Wemyss. After her marriage, Victoria Morier was styled as Baroness Wester Wemyss on 18 November 1919. She wrote the book The life and letters of Lord Wester Wemyss, G.C.B., C.M.G., M V.O., admiral of the fleet, published 1935 (ASIN: B00085O8JQ.)1
Child of Victoria Morier and Admiral Rosslyn Erskine Erskine-Wemyss, 1st and last Baron Wester Wemyss
- Hon. Alice Elizabeth Millicent Erskine-Wemyss1 b. 1906, d. 31 Dec 1994

- [S21] L. G. Pine, The New Extinct Peerage 1884-1971: Containing Extinct, Abeyant, Dormant and Suspended Peerages With Genealogies and Arms (London, U.K.: Heraldry Today, 1972), page 292. Hereinafter cited as The New Extinct Peerage.
- [S4567] Bill Norton, “re: Pitman Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 6 April 2010 and 19 April 2011. Hereinafter cited as “re: Pitman Family.”
- [S37] BP2003 volume 3, page 4125. See link for full details for this source. Hereinafter cited as. [S37]
