Historical rankings of Prime Ministers of the United Kingdom from his second term only. In 2013, a group of academic staff and students at Royal Holloway, University of London, conducted a postal survey of British Members of Parliament, asking them to evaluate the success of post-war British prime ministers. Some 158 MPs replied to the survey, a response rate of 24%. The respondents included 69 Conservatives, 67 Labour MPs, 14 Liberal Democrats and 8 MPs from other parties. The survey used the same question employed in the 2004 and 2010 University of Leeds studies: MPs were asked how successful or unsuccessful they considered each Prime Minister to have been
Records of Prime Ministers of the United Kingdom one former Prime Minister has been alive: The most living former Prime Ministers at any one time has been five, which has happened several times: the first time was between January and November 1770 (while Lord North was in office) and Lord Bute, George Grenville, Lord Rockingham, Pitt the Elder and the Duke of Grafton were still alive (Grenville died in November 1770); from 1964 to 1965 (while Wilson was in office) with Clement Attlee, Sir Winston Churchill, Sir Anthony Eden, Harold Macmillan and Sir Alec Douglas-Home (Churchill died in January 1965); from April 1976 to January 1977 (while Callaghan