General Lord William Frederick Ernest Seymour1 
He gained the rank of Midshipman in the Royal Navy.1 He fought in the Baltic Campaign in 1854.1 He fought in the Crimean War in 1856.1 He gained the rank of Colonel in the Coldstream Guards.1 On 7 February 1871 he was granted the rank of a marquess’ younger son.1 He was appointed Knight Commander, Royal Victorian Order (K.C.V.O.)1 He fought in the Egyptian Campaign in 1882.1 He held the office of Lieutenant of the Tower of London between 1902 and 1905.1
Children of General Lord William Frederick Ernest Seymour and Hon. Eva Anna Caroline Douglas-Pennant
- Dorothy Nina Seymour1 d. 7 Jan 1953
- Mary Freda Seymour+1 d. 20 Nov 1968
- Mabel Louisa Seymour1 b. c 1873, d. 27 Mar 1951
- Edward Noel Seymour1 b. 25 Dec 1878, d. 26 Jan 1880
- Hazel Georgina Seymour1 b. c 1880, d. 24 Nov 1920
Hon. Eva Anna Caroline Douglas-Pennant1 
From 31 August 1871, her married name became Seymour.2
Children of Hon. Eva Anna Caroline Douglas-Pennant and General Lord William Frederick Ernest Seymour
- Dorothy Nina Seymour1 d. 7 Jan 1953
- Mary Freda Seymour+1 d. 20 Nov 1968
- Mabel Louisa Seymour1 b. c 1873, d. 27 Mar 1951
- Edward Noel Seymour1 b. 25 Dec 1878, d. 26 Jan 1880
- Hazel Georgina Seymour1 b. c 1880, d. 24 Nov 1920
Georgina Isabella Seymour1 
Her married name became Corkran.
Child of Georgina Isabella Seymour and Charles Corkran
- Colonel Charles Seymour Corkran+ b. 1845, d. 22 Nov 1921
- [S37] BP2003 volume 2, page 1886. See link for full details for this source. Hereinafter cited as. [S37]
Charles Corkran1 
He lived at Long Ditton, Surrey, EnglandG.1
Child of Charles Corkran and Georgina Isabella Seymour
- Colonel Charles Seymour Corkran+ b. 1845, d. 22 Nov 1921
- [S37] BP2003 volume 2, page 1886. See link for full details for this source. Hereinafter cited as. [S37]
Horatia Louisa Seymour1 
- [S37] BP2003 volume 2, page 1886. See link for full details for this source. Hereinafter cited as. [S37]
Lady Emily Charlotte Seymour1 
From 10 September 1850, her married name became Ormsby-Gore. On 7 February 1871 she was granted the rank of a marquess’ daughter.1 After her marriage, Lady Emily Charlotte Seymour was styled as Baroness Harlech on 15 June 1876.
Children of Lady Emily Charlotte Seymour and William Richard Ormsby-Gore, 2nd Baron Harlech
- Hon. Mary Georgina Ormsby-Gore+2 d. 28 Aug 1937
- William Seymour Ormsby-Gore2 b. 27 Dec 1852, d. May 1853
- George Ralph Charles Ormsby-Gore, 3rd Baron Harlech+2 b. 21 Jan 1855, d. 8 May 1938
- Major Hon. Henry Arthur Ormsby-Gore2 b. 18 Mar 1857, d. 12 Mar 1921
- Hon. Emily Ormsby-Gore+2 b. c 1860, d. 12 Jul 1929
- Hon. Seymour Fitzroy Ormsby-Gore2 b. 18 Jan 1863, d. 10 Nov 1950
William Richard Ormsby-Gore, 2nd Baron Harlech1 
He held the office of Member of Parliament (M.P.) for County Sligo between 1841 and 1852.1 He held the office of High Sheriff of County Leitrim in 1857.1 He held the office of Member of Parliament (M.P.) for County Leitrim between 1858 and 1876.1 He succeeded as the 2nd Baron Harlech [U.K., 1876] on 15 June 1876.1 He held the office of Deputy Lieutenant (D.L.) of Shropshire.1 He gained the rank of Major in the 13th Light Dragoons.1 He held the office of Justice of the Peace (J.P.) for Shropshire.1 He held the office of Deputy Lieutenant (D.L.) of County Sligo.1 He held the office of Custos Rotulorum of County Leitrim.1
Children of William Richard Ormsby-Gore, 2nd Baron Harlech and Lady Emily Charlotte Seymour
- Hon. Mary Georgina Ormsby-Gore+2 d. 28 Aug 1937
- William Seymour Ormsby-Gore1 b. 27 Dec 1852, d. May 1853
- George Ralph Charles Ormsby-Gore, 3rd Baron Harlech+2 b. 21 Jan 1855, d. 8 May 1938
- Major Hon. Henry Arthur Ormsby-Gore2 b. 18 Mar 1857, d. 12 Mar 1921
- Hon. Emily Ormsby-Gore+2 b. c 1860, d. 12 Jul 1929
- Hon. Seymour Fitzroy Ormsby-Gore2 b. 18 Jan 1863, d. 10 Nov 1950
William Seymour Ormsby-Gore1 
- [S37] BP2003 volume 2, page 1792. See link for full details for this source. Hereinafter cited as. [S37]
George Ralph Charles Ormsby-Gore, 3rd Baron Harlech1 
He gained the rank of Captain in the Coldstream Guards.1 He held the office of High Sheriff of County Leitrim in 1885.1 He held the office of Lord-Lieutenant of Merionethshire.1 He was awarded the Territorial Decoration (T.D.)1 He held the office of Member of Parliament (M.P.) for Oswestry between 1901 and 1904.1 He succeeded as the 3rd Baron Harlech, of Harlech, co. Merioneth [U.K., 1876] on 26 June 1904.1 He was appointed Knight Commander, Order of the Bath (K.C.B.)1 He held the office of Justice of the Peace (J.P.) for County Leitrim.1 He gained the rank of Honorary Colonel in the Shropshire Yeomanry.1 He held the office of Constable of Harlech Castle between 1927 and 1938.1
Child of George Ralph Charles Ormsby-Gore, 3rd Baron Harlech and Lady Margaret Ethel Gordon
- William George Arthur Ormsby-Gore, 4th Baron Harlech+1 b. 11 Apr 1885, d. 14 Feb 1964
Lady Margaret Ethel Gordon1 
Her married name became Ormsby-Gore. After her marriage, Lady Margaret Ethel Gordon was styled as Baroness Harlech on 26 June 1904.
Child of Lady Margaret Ethel Gordon and George Ralph Charles Ormsby-Gore, 3rd Baron Harlech
- William George Arthur Ormsby-Gore, 4th Baron Harlech+2 b. 11 Apr 1885, d. 14 Feb 1964