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
Parliamentary Private Secretary to the Prime Minister Many Prime Ministers have used this tactic during their premierships; former Prime Minister, David Cameron, only employed one Parliamentary Private Secretary at a time during his tenure in office, but he appointed John Henry Hayes as a minister without portfolio with responsibility for the Parliamentary Conservative Party, a job typically reserved for the Parliamentary Private Secretary. The final instalment of Michael Dobbs's and the BBC's "House of Cards" trilogy, "The Final Cut", includes a character, Claire Carlsen, who serves as Prime Minister Francis Urquhart's Parliamentary Private Secretary, ultimately betraying him by attempting to leak documents about his service in the