Roger Victor Machell1 
- [S103] Paul Theroff, An Online Gotha, online http://pages.prodigy.net/ptheroff/gotha/gotha. Hereinafter cited as An Online Gotha.
Lady Helena Emily Gleichen1,2 
She gained the title of Gräfin von Gleichen.1 She was a painter.2 She was awarded the Bronze Medal for Valour of Italy.2 On 12 September 1917 she relinquished her German titles, and was granted the rank of a marquess’s daughter.2 She was appointed Dame of Grace, Most Venerable Order of the Hospital of St. John of Jerusalem (D.G.St.J.)2 She was appointed Officer, Order of the British Empire (O.B.E.) in 1920.2 She was appointed Fellow, Society of Antiquaries (F.S.A.)2
- [S13] Detlev Schwennicke, editor, Europäische Stammtafeln: Stammtafeln zur Geschicht der Europäischen Staaten, Neue Folge: Band XVII (Frankfurt am Main, Germany: Vittorio Klostermann, 1998), tafel 9. Hereinafter cited as Europäische Stammtafeln: Band XVII.
- [S37] BP2003 volume 2, page 1886. See link for full details for this source. Hereinafter cited as. [S37]
Hon. Zitz Elaine Austin1 
Her married name became Lambert.1
- [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 19. Hereinafter cited as The New Extinct Peerage.
Georgiana Ellice1 
Her married name became Seymour.
Children of Georgiana Ellice and Hugh Horatio Seymour
- Charlotte Susan Seymour1 d. 5 Aug 1948
- Hugh Francis Seymour+1 b. 23 Dec 1855, d. 14 Jun 1930
Hugh Horatio Seymour1 
Children of Hugh Horatio Seymour and Georgiana Ellice
- Charlotte Susan Seymour1 d. 5 Aug 1948
- Hugh Francis Seymour+1 b. 23 Dec 1855, d. 14 Jun 1930
- [S37] BP2003 volume 2, page 1886. See link for full details for this source. Hereinafter cited as. [S37]
Hugh Francis Seymour1 
He was a practising barrister.2 He held the office of Justice of the Peace (J.P.) for Hertfordshire.2
Children of Hugh Francis Seymour and Rachel Blanche Lascelles
- Mabel Seymour2 d. 21 Jul 1973
- Kathleen Georgiana Seymour2 d. 29 May 1946
- Mary Gwendolen Seymour2 d. 18 Sep 1974
- Sir Horace James Seymour+2 b. 26 Feb 1885, d. 8 Sep 1978
- Lieutenant Francis Seymour2 b. 30 May 1886, d. 30 Jul 1915
Rachel Blanche Lascelles1 
Her married name became Seymour.
Children of Rachel Blanche Lascelles and Hugh Francis Seymour
- Mabel Seymour2 d. 21 Jul 1973
- Kathleen Georgiana Seymour2 d. 29 May 1946
- Mary Gwendolen Seymour2 d. 18 Sep 1974
- Sir Horace James Seymour+2 b. 26 Feb 1885, d. 8 Sep 1978
- Lieutenant Francis Seymour2 b. 30 May 1886, d. 30 Jul 1915
Thomas Edward Erskine1 
He was Consul-General to New Orleans.1
Children of Thomas Edward Erskine and Amy Gertrude Bruce
- Dr. Marjory Rachel Helen Erskine1 b. 12 Sep 1889, d. 23 Sep 1981
- Diana Isabel Erskine1 b. 2 Feb 1892, d. 3 Sep 1986
- Violet Amy Erskine+1 b. 22 Mar 1894, d. 11 Aug 1996
- Thomas Erskine1 b. 20 Feb 1898, d. Apr 1967
- John Steuart Erskine+1 b. 8 Nov 1900, d. 18 Sep 1981
- [S37] BP2003 volume 1, page 569. See link for full details for this source. Hereinafter cited as. [S37]
Sir Horace James Seymour1 
He was educated at Eton College, Windsor, Berkshire, EnglandG.1 He was educated at Trinity College, Cambridge University, Cambridge, Cambridgeshire, EnglandG.1 He was with the Foreign Office in 1908.1 He was 2nd Secretary to the U.S.A. in 1919.1 He was 1st Secretary to the Netherlands in 1923.1 He was 1st Secretary to Italy in 1925.1 He was Principal Private Secretary to the Foreign Secretary between 1932 and 1936.1 He was appointed Commander, Royal Victorian Order (C.V.O.) in 1936.2 He held the office of Envoy Extraoridnary and Minister Plenipotentiary to Persia between 1936 and 1939.1 He held the office of Assistant Under-Secretary of the Foreign Office between 1939 and 1942.1 He held the office of Ambassador to China between February 1942 and June 1946.1 He was appointed Knight Grand Cross, Order of St. Michael and St. George (G.C.M.G.) in 1946.2 He was with the Franco-Siamese Boundary Commission between April 1947 and July 1947 at Washington, D.C., U.S.A.G.1 He was chairman of the U.K. Delegation to the Balkans Commission in December 1947 at Salonika, GreeceG.1
Children of Sir Horace James Seymour and Violet Amy Erskine
- Jane Seymour1 d. 15 Aug 1918
- Joan Seymour+1
- Virginia Seymour+1
- Hugh Francis Seymour+1 b. 14 Dec 1926
Violet Amy Erskine1 
Her married name became Seymour. She was Secretary of the British Embassy at Washington, D.C., U.S.A.G.1
Children of Violet Amy Erskine and Sir Horace James Seymour
- Jane Seymour2 d. 15 Aug 1918
- Joan Seymour+2
- Virginia Seymour+2
- Hugh Francis Seymour+2 b. 14 Dec 1926