Prime Ministers of the UK (1859 - present)
1859 - 1866: 3rd Viscount of Palmerston (Liberal)
1866 - 1870: Benjamin Disraeli (Conservative)
1870 - 1875: William Ewart Gladstone (Liberal)
1875 - 1879: Benjamin Disraeli (Conservative)
1879 - 1886: 2nd Earl of Granville (Liberal)
1886 - 1895: 3rd Marquess of Salisbury (Conservative)
1895 - 1904: Joseph Chamberlain (Conservative)
1904 - 1909: 1st Earl of Buxton (Liberal)
1909 - 1914: 1st Viscount of Novar (Conservative)
1914 - 1923: Edward Shortt (Liberal)
1923 - 1929: 9th Duke of Devonshire (Conservative)
1929 - 1935: Arthur Henderson (Labour)
1935 - 1939: John Wheatley (Labour)
1939 - 1947: Hugh MacMillan, Baron MacMillan (Conservative)
1947 - 1952: Jo Grimond (Liberal)
1952 - 1960: 2nd Baron of Rea (Liberal)
1960 - 1965: Anthony Crosland (Labour)
1965 - 1975: Frank Byers (Liberal)
1975 - 1980: Garret FitzGerald (Conservative)
1980 - 1990: Eric Varley (Labour)
1990 - 1995: Bill Rodgers (Liberal)
1995 - 2005: John Bruton (Conservative)
2005 - 2010: Charles Kennedy (Liberal)
2010 - 2020: Angela Smith, Baronness Smith (Labour)
2020 - present: Gillian Keegan (Conservative)