This is a list of people who have served as Lord Lieutenant of County Tyrone. There were lieutenants of counties in Ireland until the reign of James II, when they were renamed governors. The office of Lord Lieutenant was recreated on 23 August 1831. Governors Thomas Knox, 1st Viscount Northland: –1818 John Hamilton, 1st Marquess of Abercorn: –1818 Somerset Lowry-Corry, 2nd Earl Belmore: –1831 Du Pre Alexander, 2nd Earl of Caledon: –1831 Charles Gardiner, 1st Earl of Blessington: –1829 (died 1829) Lord Lieutenants The 2nd Earl of Caledon: 17 October 1831 – 8 April 1839 The 2nd Earl of Charlemont: June 1839 – 26 December 1863 The 3rd Earl of Charlemont: 3 March 1864 – 12 January 1892 The 4th Earl Belmore: 10 February 1892 – 6 April 1913 Edward Archdale: 5 August 1913 – 4 July 1916 The 3rd Duke of Abercorn: 26 April 1917 – 1945 James Ponsonby Galbraith: 25 September 1945 – 1 October 1950 The 4th Duke of Abercorn: 8 January 1951 – 1979 John Hamilton-Stubber: 1 March 1979 – 3 October 1986 The 5th Duke of Abercorn: 20 March 1987 – 4 July 2009 Robert Lowry Scott: 5 July 2009 – present Deputy lieutenants A deputy lieutenant of Tyrone is commissioned by the Lord Lieutenant of Tyrone. Deputy lieutenants support the work of the lord-lieutenant. There can be several deputy lieutenants at any time, depending on the population of the county. Their appointment does not terminate with the changing of the lord-lieutenant, but they usually retire at age 75. 21st Century 24 March 2010: Countess Castle Stewart References Tyrone Northern Ireland-related lists