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
Records of Prime Ministers of the United Kingdom have both had immediate successors to die in office. The longest-married Prime Minister was James Callaghan who was married to his wife Audrey for 66 years from July 1938 until her death on 15 March 2005. Three Prime Ministers married while in office, all to second wives: The British Prime Minister widowed the shortest is James Callaghan, who died on 26 March 2005. His wife, Audrey Callaghan, died on 15 March 2005, only 11 days before him. Only two British Prime Ministers have been divorced: Only four British Prime Ministers were bachelors: At least 24 British Prime Ministers were related