Walter Erskine, Earl of Mar and Kellie (1865–1955)
Walter John Francis Erskine, 12th Earl of Mar and 14th Earl of Kellie( 29 August 1865 – 3 June 1955) was a Scottish nobleman.
Gilbert Talbot, 3rd Baron Talbot
Gilbert Talbot, 3rd Baron Talbot( c. 1332–1387) was an English nobleman and soldier.
He was the grandfather of John Talbot, 1st Earl of Shrewsbury.
Edward Scudamore-Stanhope, 12th Earl of Chesterfield
Edward Henry Scudamore- Stanhope, 12th Earl of Chesterfield( 9 February 1889 – 2 August 1952) was an English nobleman.
Ralph Neville, 3rd Earl of Westmorland
Ralph Neville, 3rd Earl of Westmorland( c. 1456 – 6 February 1499) was an English peer.
He was the grandfather of Ralph Neville, 4th Earl of Westmorland.
John Stewart, 7th Earl of Galloway
John Stewart, 7th Earl of Galloway KT( 13 March 1736 – 13 November 1806) was a Scottish peer, styled Viscount Garlies from 1747 until 1773, who became the 7th Earl of Galloway in 1773 and who served as a Member of Parliament from 1761 to 1773.
Harriet Stewart, Countess of Galloway
Harriet (or "Harriett) Stewart, Countess of Galloway (18 August 1811 – 25 May 1885), formerly Lady Harriet Blanche Somerset, was the wife of Randolph Stewart, 9th Earl of Galloway.
She was the daughter of Henry Somerset, 6th Duke of Beaufort, and his wife, the former Lady Charlotte Sophia Leveson-Gower.
She married the future earl, who was eleven years her senior, on 9 August 1833, a year before he succeeded in the earldom, while he was Lord-Lieutenant of Kirkcudbrightshire and Wigtonshire.
The earl and countess had six sons and seven daughters, including:
In the course of their marriage, considerable work was done on the family seat, Galloway House.
William Burn was employed in 1841to carry out alterations, including an additional floor in parts of the building.
The earl died in 1873 and was succeeded in turn by his eldest son Alan Stewart, 10th Earl of Galloway, and subsequently by his second son Randolph.
The countess died in 1885 at her home in Eaton Square, London, aged 74.
Randolph Stewart, 12th Earl of Galloway
Randolph Algernon Ronald Stewart, 12th Earl of Galloway (21 November 1892 – 13 June 1978) was the son of Randolph Stewart, 11th Earl of Galloway, styled Viscount Garlies from 1901 to 1920.
On 14 October 1924, he married Philippa Fendall Wendell (died 22 February 1974).
Philippa was the daughter of Jacob Wendell III (ca. 1869–1911) and Marian Fendall (1870).
Marian was in turn the granddaughter of Philip Richard Fendall II (1794–1867), the District Attorney of the District of Columbia.
Philippa was the sister of Anne Catherine Tredick Wendell, first wife of Henry Herbert, 6th Earl of Carnarvon.
Randolph and Philippa had the following children:
Alexander Stewart, 6th Earl of Galloway
Alexander Stewart, 6th Earl of Galloway( c. 1694 – 24 September 1773) was a Scottish aristocrat.
Randolph Stewart, 11th Earl of Galloway
Randolph Henry Stewart, 11th Earl of Galloway (14 October 1836 – 7 February 1920) was a Scottish first-class cricketer and British Army officer.
The son of Randolph Stewart, 9th Earl of Galloway and his wife, Lady Harriett Blanche Somerset, he was born at Galloway House in October 1836.
He was educated at Harrow School.
After leaving Harrow, Stewart enlisted in the British Army as an ensign in the 42nd Highlanders in March 1855, with promotion to the rank of lieutenant coming without purchase in August 1855.
Stewart saw action during the latter stages of the Crimean War and was present at the Siege and Fall of Sevastopol, with the Ottoman Empire decorating him with the Turkish Crimea Medal.
He played first-class cricket for the Gentlemen of England in 1856, making two appearances against the Gentlemen of Surrey and Sussex at Lord's and the Gentlemen of Kent and Sussex at Canterbury.
He served in the Indian Mutiny and was present at the Siege of Lucknow in 1857.
Following the suppression of the mutiny, Stewart continued to serve in British Indian in the capacity of a brigade-major in Ferozepore in 1859, and a deputy assistant quartermaster-general in Allahabad in 1860.
He was promoted to the rank of captain by purchase in June 1864.
He later served as a justice of the peace and married Amy Mary Pauline Cliffe in June 1891, with the couple having two children.
He succeeded his elder brother Alan Stewart, who also played first-class cricket, as the 11th Earl of Galloway on 7 February 1901.
He died at Cumlowden House at Minnigaff in Kirkcudbrightshire in February 1920, at which point he was succeeded as the 12th Earl of Galloway by his son, Randolph.
His nephews, Alexander Stewart and James Stewart, both played first-class cricket.
Algernon Turnor
Algernon Turnor( 14 November 1845 – 11 December 1921), CB, was a British civil servant who was financial secretary to the British Post Office.
Turnor married Lady Henrietta Caroline, daughter of Randolph( Stewart) 9th Earl of Galloway, on 3 August 1880.
Correspondence between Turnor and Lord Beaconsfield is held is the special collections of the Bodleian Library at Oxford University.
A significant amount of material relating to Turnor's position at the Post Office is held by the British Postal Museum& Archive.

Question: Who is Randolph Stewart, 12Th Earl Of Galloway's paternal grandfather?
Answer: Randolph Stewart, 9th Earl of Galloway