Arthur Hay, 9th Marquess of Tweeddale1 
He gained the rank of Ensign and Lieutenant in 1841 in the Grenadier Guards.1 He was Aide-de-Camp to the Viceroy of India between 1845 and 1846.1 He fought in the Sutlej Campaign between 1845 and 1846.1 He gained the rank of Lieutenant and Captain in 1846.1 He gained the rank of Lieutenant-Colonel in 1854.1 He fought in the Crimean War.1 He gained the rank of Colonel in 1860.1 He was appointed Fellow, Linnean Society (F.L.S.) in 1865.1 He held the office of Deputy Lieutenant (D.L.) of Haddington.1 He was president of the Royal Zoological Society between 1868 and 1878.1 He was appointed Fellow, Royal Society (F.R.S.) in 1871.1 He succeeded as the 9th Earl of Gifford [S., 1694] on 10 October 1876.1 He succeeded as the 9th Marquess of Tweeddale [S., 1694] on 10 October 1876.1 He succeeded as the 17th Lord Hay of Yester [S., 1488] on 10 October 1876.1 He succeeded as the 10th Earl of Tweeddale [S., 1646] on 10 October 1876.1 He succeeded as the 9th Viscount of Walden [S., 1694] on 10 October 1876.1 He wrote the book Ornithological Works, published 1881 (ASIN: B00467J306.)1
Helena Eleanora Augusta de Kielmansegge1 
She held the office of Lady of the Bedchamber to HRH The Princess of Wales.1 Her married name became Hay.
- [S37] BP2003 volume 3, page 3964. See link for full details for this source. Hereinafter cited as. [S37]
Adolphus Augutus Frederic Graf de Kielmansegge1
Child of Adolphus Augutus Frederic Graf de Kielmansegge
- Helena Eleanora Augusta de Kielmansegge1 d. 30 Sep 1871
- [S37] BP2003 volume 3, page 3964. See link for full details for this source. Hereinafter cited as. [S37]
Julia Charlotte Sophia Stewart-Mackenzie1 
From 8 October 1873, her married name became Hay. After her marriage, Julia Charlotte Sophia Stewart-Mackenzie was styled as Marchioness of Tweeddale on 10 October 1876. From 24 January 1887, her married name became Rose. From 2 February 1892, her married name became Gordon.
- [S37] BP2003 volume 1, page 978. See link for full details for this source. Hereinafter cited as. [S37]
Keith William Stewart-Mackenzie1 
He held the office of Deputy Lieutenant (D.L.)2 He lived at Seaforth, Lancashire, EnglandG.2
Children of Keith William Stewart-Mackenzie and Hannah Charlotte Hope-Vere
- Susan Mary Elizabeth Stewart-Mackenzie+3 d. 25 Jan 1931
- Julia Charlotte Sophia Stewart-Mackenzie1 b. 21 Jun 1846, d. 17 May 1937
- James Alexander Francis Humberston Stewart-Mackenzie, 1st and last Baron Seaforth1 b. 9 Oct 1847, d. 3 Mar 1923
Child of Keith William Stewart-Mackenzie and Alicia Almira Seymour Bell
- [S37] BP2003 volume 1, page 978. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [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 245. Hereinafter cited as The New Extinct Peerage.
Rt. Hon. Sir John Rose, 1st Bt.1 
He was a practising barrister in 1842 at CanadaG.2 He was appointed Queen’s Counsel (Q.C.) in 1851.2 He held the office of Solicitor-General in 1859.2 He held the office of Minister of Public Works in 1860.2 He held the office of Minister of Finance in 1867.2 He was appointed Knight Commander, Order of St. Michael and St. George (K.C.M.G.) in 1870.2 He was created 1st Baronet Rose, of Montreal [U.K.] on 9 September 1872.2 He was appointed Knight Grand Cross, Order of St. Michael and St. George (G.C.M.G.) in 1878.2 He held the office of Receiver-General of the Duchy of Cornwall in 1883.2 He was appointed Privy Counsellor (P.C.) in 1886.2
Children of Rt. Hon. Sir John Rose, 1st Bt. and Charlotte Temple
- Mary Temple Rose+2 d. 28 Mar 1913
- Charlotte Amy Rose2 d. 24 Jan 1917
- Sir William Rose, 2nd Bt.+2 b. 1 Apr 1846, d. 4 Oct 1902
- Sir Charles Day Rose, 1st Bt.+2 b. 23 Aug 1847, d. 20 Apr 1913
- Captain Edward Temple Rose2 b. 2 Nov 1855, d. 1920
Major Sir William Eden Evans Gordon1 
He held the office of Member of Parliament (M.P.) for Stepney.1
Hannah Charlotte Hope-Vere1 
Her married name became Stewart-Mackenzie.
Children of Hannah Charlotte Hope-Vere and Keith William Stewart-Mackenzie
- Susan Mary Elizabeth Stewart-Mackenzie+ d. 25 Jan 1931
- Julia Charlotte Sophia Stewart-Mackenzie1 b. 21 Jun 1846, d. 17 May 1937
- James Alexander Francis Humberston Stewart-Mackenzie, 1st and last Baron Seaforth1 b. 9 Oct 1847, d. 3 Mar 1923
- [S37] BP2003 volume 1, page 978. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [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 247. Hereinafter cited as The New Extinct Peerage.
Eliab Breton1,2 
He lived at Enfield, London, EnglandG.2
Children of Eliab Breton and Elizabeth Wolstenholme
- Mary Breton+ b. 1742, d. 25 Jun 1767
- Michael Harvey Breton+1 b. 6 Jul 1743, d. 18 Jun 1798
- William Breton Wolstenholme+1 b. 2 Jul 1749
Alicia Almira Seymour Bell1 
From 2 June 1871, her married name became Stewart-Mackenzie. From 28 August 1883, her married name became Nangle.
Child of Alicia Almira Seymour Bell and Keith William Stewart-Mackenzie
- [S37] BP2003 volume 2, page 1512. See link for full details for this source. Hereinafter cited as. [S37]