Question: Jacob Rees-Mogg is a British Politician born in 1969, who was his grandfather? 

Context articles: Edgar Dewdney
Jacob Rees-Mogg
Thomas Speakman Barnett
Thomas Richard Morris
Hisayasu Nagata
George Gould (businessman)
Hamdi al-Pachachi
John Pascoe Grenfell
William Smith (abolitionist)
Samuel Storey

Edgar Dewdney, PC (November 5, 1835 – August 8, 1916) was a Canadian surveyor, road builder, Indian commissioner and politician born in Devonshire, England.
 He served as Lieutenant-Governor of the North-West Territories and the fifth Lieutenant-Governor of British Columbia.
Jacob William Rees-Mogg (born 24 May 1969) is a British Conservative politician, who was first elected as the Member of Parliament for North East Somerset at the 2010 general election.
Thomas Speakman "Tom" Barnett (September 3, 1909 – June 5, 2003) was a politician born in Red Deer, Alberta, Canada.
 He attended schools in Alberta and British Columbia, and earned a degree at the University of British Columbia.
 He married Ruth Evelyn Pidcock on July 1, 1942.
 He worked in saw mills, as editor of the Wells Chronicle (Wells, BC), and was active in trade union affairs.
Thomas Richard Morris JP was a British Conservative politician and magistrate who served as Mayor of St Pancras from 1961 until 1962.
 Active in London's politics from at least the 1950s, Morris was an active member of the St Pancras Borough Council by the early 1960s, assisting in cultural and infrastructural projects, soon securing the mayoralty of the area.
 Following his tenure, he stood for election to the fledgling Camden London Borough Council, successful at his second attempt in 1968.
 Representing the Kings Cross ward, his political career did not extend into the 1970s.
 Morris' daughter Gillian Shakespeare married prominent journalist William Rees-Mogg in 1962, subsequently mothering future political figures Annunziata and Jacob.
Hisayasu Nagata (永田 寿康 , Nagata Hisayasu , September 2, 1969 – January 3, 2009) was a Japanese politician born in Nagoya City in Aichi Prefecture.
George Gould (6 April 1865 – 26 May 1941) was a New Zealand farmer, businessman, stock breeder, racehorse owner and breeder, and racing administrator.
 He was born in Christchurch, New Zealand on 6 April 1865.
 His father (1823–1889), a prominent businessman, had the same name.
 He was the uncle of George Macdonald.
 He was the grandfather of British politician, Bryan Gould.
Hamdi al-Pachachi (Arabic: حمدي الباجه جي; l886 – March 28, 1948), Iraqi politician born to a prominent family in Baghdad.
 He studied law at the Royal School in Istanbul, graduating in 1909.
 He taught at the Baghdad Law School from 1913 to 1916.
 While in Istanbul, he joined the Covenant Society and became active in the Arab nationalist movement.
 Upon his return to Baghdad, he joined with the nationalists, who were demanding the decentralization of the Ottoman Empire.
 As a result of his political activities in support of the Iraqi revolt against the British in 1920, al-Pachachi was arrested and exiled to Hanja, an island in the Persian Gulf.
 After his release, he continued to take part in anti-British activities.
John Pascoe Grenfell (20 September 1800 – 20 March 1869) was a British officer of the Empire of Brazil.
 He spent most of his service in South America campaigns, initially under the leadership of Lord Cochrane and then .
 He was the nephew of British politician Pascoe Grenfell and grandfather to General Sir John Grenfell Maxwell.
 In Brazil, he rose to the rank of Admiral and for his achievements was made a knight grand cross of the Imperial Order of the Rose and a knight of the Imperial Order of the Southern Cross.
William Smith (1756–1835) was a leading independent British politician, sitting as Member of Parliament (MP) for more than one constituency.
 He was an English Dissenter and was instrumental in bringing political rights to that religious minority.
 He was a friend and close associate of William Wilberforce and a member of the Clapham Sect of social reformers, and was in the forefront of many of their campaigns for social justice, prison reform and philanthropic endeavour, most notably the abolition of slavery.
 He was the maternal grandfather of pioneer nurse and statistician Florence Nightingale.
Samuel Storey (1841–1925) was a British politician born in County Durham.
 He became a Member of Parliament for Sunderland and the main founder of the "Sunderland Echo" newspaper.