Records of Prime Ministers of the United Kingdom Wilmington to Theresa May) University college with most alumni Prime MinistersChrist Church, Oxford13 (George Grenville to Sir Alec Douglas-Home) Vocational institution with most Prime Ministers as studentsThe Inns of Court11 (Lord Wilmington to Tony Blair). Of these, eight passed through Lincoln's Inn (William Pitt the Younger to Tony Blair). The first Prime Minister never to have been a university graduate was the Duke of Devonshire (served 1756–57), the last (as of ) was John Major (served 1990–97). The earliest Prime Minister to be an armed forces veteran was Henry Pelham, Prime Minister in 1743–54, who had served as a volunteer
Historical rankings of Prime Ministers of the United Kingdom judged to be Anthony Eden. Historian Francis Beckett ranked the 20th-century prime ministers with points out of five in 2006, based on how well the leaders implemented their policies—not on the policies themselves. Margaret Thatcher and Clement Attlee shared the highest ranking. In September 2008 the BBC "Newsnight" programme conducted an online poll. Asking voters to decide who they thought was the greatest and worst of post-war prime ministers. 27,000 people responded, and decided that Winston Churchill was the greatest, with Attlee second. The full results were: In a BBC poll to find the 100 Greatest Britons in 2002, five