Q - The Father of the House is the unofficial term used in Parliament for the MP with the longest period of continuous service. Alan Williams MP is the incumbent, having served uninterrupted since 1964. Can you name the five twentieth-century Prime Ministers who went on to hold the title?

A - The five ex-Prime Ministers of the twentieth century who eventually became Father of the House were:

Sir Henry Campbell-Bannerman

David Lloyd George

Sir Winston Churchill

Sir James Callaghan

Sir Edward Heath

You can read more about the role of Father of the House in this Parliamentary document.