Eyre Nathaniel Massey, 6th Baron Clarina of Elm Park1 
He gained the rank of Lieutenant in the Scots Guards.1 He succeeded as the 6th Baron Clarina of Elm Park, co. Limerick [I., 1800] on 13 October 1922.2
On his death, his title became extinct.2
Child of Eyre Nathaniel Massey, 6th Baron Clarina of Elm Park and Alice Erin Allhusen
- Hon. Erin Moira Massey3 b. 29 Nov 1909
- [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 274. Hereinafter cited as The Complete Peerage.
- [S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 186. Hereinafter cited as The Complete Peerage, Volume XIV.
- [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 73. Hereinafter cited as The New Extinct Peerage.
Alice Erin Allhusen1 
From 11 July 1906, her married name became Massey. She was with the French Red Cross in France and Belgium, and was mentioned in despatches between 1914 and 1915.3 She was with the French Red Cross in Greece, and served on the Serbian-Bulgarian front in 1916.3 She was with the French Red Cross in Italy and Cologne between 1917 and 1918.3 She was awarded the Order of St. Sava of Serbia.3 She was awarded the Military Medal (M.M.)3 After her marriage, Alice Erin Allhusen was styled as Baroness Clarina of Elm Park on 13 October 1922.
Child of Alice Erin Allhusen and Eyre Nathaniel Massey, 6th Baron Clarina of Elm Park
- Hon. Erin Moira Massey3 b. 29 Nov 1909
- [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 274. Hereinafter cited as The Complete Peerage.
- [S2] Peter W. Hammond, editor, The Complete Peerage or a History of the House of Lords and All its Members From the Earliest Times, Volume XIV: Addenda & Corrigenda (Stroud, Gloucestershire, U.K.: Sutton Publishing, 1998), page 186. Hereinafter cited as The Complete Peerage, Volume XIV.
- [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 73. Hereinafter cited as The New Extinct Peerage.
Christian Wilton Allhusen1,2 
He lived at Pinhay, Devon, EnglandG.1
Children of Christian Wilton Allhusen and Adelaide Louisa Vandeleur
- Alice Erin Allhusen+1 d. 12 May 1961
- Major Desmond Allhusen4 d. 25 Mar 1977
- Helen Allhusen5 d. 29 Oct 1948
- [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 274. Hereinafter cited as The Complete Peerage.
- [S7529] WikiTree, online http://www.wikitree.com/. Hereinafter cited as WikiTree.
- [S1122] Peerage News, online http://peeragenews.blogspot.co.nz/. Hereinafter cited as Peerage News.
- [S34] BP1970 page 1044. See link for full details for this source. Hereinafter cited as. [S34]
- [S37] BP2003 volume 2, page 2789. See link for full details for this source. Hereinafter cited as. [S37]
Philip Edward Perceval1 
He graduated from St. John’s College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, in 1936 with a Bachelor of Arts (B.A.)1 He graduated from St. John’s College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, in 1940 with a Bachelor of Medicine (M.B.)1 He graduated from St. John’s College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, in 1940 with a Bachelor of Surgery (B.Ch.)1 He graduated from St. John’s College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, in 1940 with a Master of Arts (M.A.)1 He fought in the Second World War.1 He graduated from St. John’s College, Cambridge University, Cambridge, Cambridgeshire, EnglandG, in 1950 with a Doctor of Medicine (M.D.)1
Child of Philip Edward Perceval and Joan Margaret Hacking
- Elizabeth Margaret Perceval1 b. 14 Jul 1947, d. 3 Nov 2015
- [S37] BP2003 volume 1, page 1288. See link for full details for this source. Hereinafter cited as. [S37]
Joan Margaret Hacking1
Her married name became Perceval.
Child of Joan Margaret Hacking and Philip Edward Perceval
- Elizabeth Margaret Perceval1 b. 14 Jul 1947, d. 3 Nov 2015
- [S37] BP2003 volume 1, page 1288. See link for full details for this source. Hereinafter cited as. [S37]
Lt.-Col. Alfred Hacking1
Child of Lt.-Col. Alfred Hacking
- [S37] BP2003 volume 1, page 1288. See link for full details for this source. Hereinafter cited as. [S37]
Elizabeth Margaret Perceval1 
She lived in 2003 at 11 Condover Park, Condover, Shropshire, EnglandG.1
- [S37] BP2003 volume 1, page 1288. 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.
Mary Leonora Perceval1
She lived in 2003 at Armadale, Aston Street, Aston Tirrold, Oxfordshire, EnglandG.1
- [S37] BP2003 volume 1, page 1288. See link for full details for this source. Hereinafter cited as. [S37]
Lieutenant Edward Perceval1

He gained the rank of Lieutenant in the King’s Royal Rifle Regiment.1 He fought in the Boer War.1
- [S37] BP2003 volume 1, page 1288. See link for full details for this source. Hereinafter cited as. [S37]
Margaret Perceval1 
- [S37] BP2003 volume 1, page 1288. See link for full details for this source. Hereinafter cited as. [S37]