Hon. Joseph Lucius Henry Petre1

He gained the rank of Captain in the Suffolk Yeomanry Cavalry.1 He fought in the Boer War.1
Hon. Frances Mary Petre1 
After her marriage, Hon. Frances Mary Petre was styled as Countess of Granard on 4 September 1873. From 4 September 1873, her married name became Forbes.
Children of Hon. Frances Mary Petre and George Arthur Hastings Forbes, 7th Earl of Granard
- Lady Margaret Mary Theresa Forbes1 d. 19 May 1965
- Bernard Arthur William Patrick Hastings Forbes, 8th Earl of Granard+1 b. 17 Sep 1874, d. 10 Sep 1948
- Hon. Fergus Reginald George Forbes1 b. 20 Jan 1876, d. 18 Feb 1876
- Hon. Reginald George Benedict Forbes1 b. 25 Jun 1877, d. 20 May 1908
- Lady Eva Mary Margaret Forbes1 b. 25 Jun 1877, d. 1968
- Colonel Hon. Donald Alexander Forbes+1 b. 3 Sep 1880, d. 2 Aug 1938
- Lt.-Col. Hon. Bertram Aloysius Forbes1 b. 26 May 1882, d. 5 Aug 1960
- Captain Hon. Fergus George Arthur Forbes1 b. 26 May 1882, d. 23 Aug 1914
George Arthur Hastings Forbes, 7th Earl of Granard1 
He succeeded as the 2nd Baron Granard of Castle Donnington, co. Leicester [U.K., 1806] on 9 June 1837.1 He succeeded as the 7th Earl of Granard [I., 1684] on 9 June 1837.1 He succeeded as the 8th Baronet Forbes, of Castle Forbes, Co. Longford, Ireland [N.S., 1628] on 9 June 1837.1 He succeeded as the 7th Viscount of Granard, co. Longford [I., 1675] on 9 June 1837.1 He succeeded as the 7th Baron Clanehugh, co. Longford [I., 1675] on 9 June 1837.1 He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He held the office of Vice-Admiral of Connaught.1 He was appointed Knight, Order of St. Patrick (K.P.) in 1857.1 He was awarded the Knight, Sovereign Military Order of Malta.1 He was awarded the Knight Grand Cross, Order of St. Gregory the Great.1 He was member of the Senate of the Royal University of Ireland.1 He was Lieutenant-Colonel Commandant of the 9th Battalion, Rifle Brigade, Prince Consort’s Own.1
Children of George Arthur Hastings Forbes, 7th Earl of Granard and Jane Colclough Morgan
- Lady Sophia Maria Elizabeth Forbes+1 d. 7 Nov 1942
- Lady Adelaide Jane Frances Forbes+1 b. 1860, d. 18 Nov 1942
Children of George Arthur Hastings Forbes, 7th Earl of Granard and Hon. Frances Mary Petre
- Lady Margaret Mary Theresa Forbes1 d. 19 May 1965
- Bernard Arthur William Patrick Hastings Forbes, 8th Earl of Granard+1 b. 17 Sep 1874, d. 10 Sep 1948
- Hon. Fergus Reginald George Forbes1 b. 20 Jan 1876, d. 18 Feb 1876
- Hon. Reginald George Benedict Forbes1 b. 25 Jun 1877, d. 20 May 1908
- Lady Eva Mary Margaret Forbes1 b. 25 Jun 1877, d. 1968
- Colonel Hon. Donald Alexander Forbes+1 b. 3 Sep 1880, d. 2 Aug 1938
- Lt.-Col. Hon. Bertram Aloysius Forbes1 b. 26 May 1882, d. 5 Aug 1960
- Captain Hon. Fergus George Arthur Forbes1 b. 26 May 1882, d. 23 Aug 1914
- [S37] BP2003 volume 2, page 1629. See link for full details for this source. Hereinafter cited as. [S37]
Jane Colclough Morgan1 
After her marriage, Jane Colclough Morgan was styled as Countess of Granard on 2 June 1858. From 2 June 1858, her married name became Forbes.
Children of Jane Colclough Morgan and George Arthur Hastings Forbes, 7th Earl of Granard
- Lady Sophia Maria Elizabeth Forbes+1 d. 7 Nov 1942
- Lady Adelaide Jane Frances Forbes+1 b. 1860, d. 18 Nov 1942
- [S37] BP2003 volume 2, page 1629. See link for full details for this source. Hereinafter cited as. [S37]
Hamilton Knox Grogan Morgan1 
He held the office of Member of Parliament (M.P.)1 He lived at Johnstown Castle, County Wexford, IrelandG.1
Child of Hamilton Knox Grogan Morgan
- Jane Colclough Morgan+1 d. 22 Jan 1872
Lionel George Carroll Petre, 16th Baron Petre1

He was educated at The Oratory School, Edgbaston, Warwickshire, England.3 He succeeded as the 16th Baron Petre, of Writtle, co. Essex [E., 1603] on 6 December 1908.1 He gained the rank of Captain in the Coldstream Guards.1 He fought in the First World War.1
Children of Lionel George Carroll Petre, 16th Baron Petre and Catherine Margaret Boscawen
- Joseph William Lionel Petre, 17th Baron Petre+1 b. 5 Jun 1914, d. 1 Jan 1989
- Hon. Elizabeth Mary Lionel Margaret Petre+1 b. 13 Dec 1915
- [S37] BP2003 volume 3, page 3123. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S7889] Dora Nash, “re: The Oratory School,” family provided evidence then verified by subsequent research and verification by BENR (101053), 29 January 2016. Hereinafter cited as “re: The Oratory School.”
Catherine Margaret Boscawen1 
From 28 June 1913, her married name became Petre. After her marriage, Catherine Margaret Boscawen was styled as Baroness Petre on 28 June 1913. She held the office of Justice of the Peace (J.P.) for Essex in 1920.2 From 21 July 1921, her married name became Rasch.2
Children of Catherine Margaret Boscawen and Lionel George Carroll Petre, 16th Baron Petre
- Joseph William Lionel Petre, 17th Baron Petre+2 b. 5 Jun 1914, d. 1 Jan 1989
- Hon. Elizabeth Mary Lionel Margaret Petre+2 b. 13 Dec 1915
Hon. John Richard de Clare Boscawen1 
He held the office of Deputy Lieutenant (D.L.) of Cornwall.1 He gained the rank of Captain and Honorary Major in the 4th Battalion, Oxfordshire Light Infantry.1 He held the office of Justice of the Peace (J.P.) for Cornwall.1 He held the office of Justice of the Peace (J.P.) for Kent.1
Child of Hon. John Richard de Clare Boscawen and Lady Margaret Florence Lucy Byng
- Catherine Margaret Boscawen+1 b. 29 May 1891, d. 25 Jul 1983
- [S37] BP2003 volume 1, page 1387. See link for full details for this source. Hereinafter cited as. [S37]
Sir Frederick Carne Rasch, 2nd Bt. 
Sir Frederick Carne Rasch, 2nd Bt. usually went by his middle name of Carne.1 He was educated at Eton College, Windsor, Berkshire, England.1 He gained the rank of Lieutenant-Colonel in the Carabiniers.1 He fought in the First World War, he was mentioned in despatches.1 He succeeded as the 2nd Baronet Rasch, of Woodhill, Dunbury, Essex [U.K., 1903] on 27 September 1914.1 He was Lieutenant-Colonel of the 5th Battalion, Essex Regiment (Territorial Army) between 1922 and 1928.1 He held the office of High Sheriff for Essex between 1924 and 1925.1 He gained the rank of Brevet-Colonel in 1926.1 He was Colonel of the 161st (Essex) Infantry Brigade between 1928 and 1932.1 He was a member of Gentlemen-at-Arms between 1929 and 1938.1 He was Aide de Camp to HM George V between 1931 and 1941.1 He served in the River Emergency Services during the Second World War between 1939 and 1940.1 He was Commander of the 2nd Battalion, Essex Home Guard between 1940 and 1943.1 He was Commander of the Admiralty Ferry Crews between 1943 and 1945.1 He held the office of Justice of the Peace (J.P.) for Essex.1 He held the office of Deputy Lieutenant (D.L.)1
Lady Margaret Florence Lucy Byng1 
Her married name became Boscawen.
Child of Lady Margaret Florence Lucy Byng and Hon. John Richard de Clare Boscawen
- Catherine Margaret Boscawen+1 b. 29 May 1891, d. 25 Jul 1983
