Harold Wilson former prime ministers or senior parliamentary figures. There is an extensive bibliography on Harold Wilson. He is the author of a number of books. He is the subject of many biographies (both light and serious) and academic analyses of his career and various aspects of the policies pursued by the governments he led. He features in many "humorous" books. He was the Prime Minister in the so-called "Swinging London" era of the 1960s, and therefore features in many of the books about this period of history. Harold Wilson James Harold Wilson, Baron Wilson of Rievaulx, (11 March 1916– 24 May
First Secretary of State of their cabinet portfolios when serving as Deputy Prime Minister, and were therefore additionally appointed First Secretary of State. In 1964, Prime Minister Harold Wilson established the alternative usage, appointing a First Secretary of State among the cabinet without appointing a Deputy Prime Minister. The two titles have only existed concurrently with different holders in one government: in David Cameron's coalition ministry of 2010–15, Nick Clegg, the leader of the Liberal Democrats, was appointed Deputy Prime Minister, while former Conservative leader William Hague was appointed First Secretary of State. First Secretary of State First Secretary of State is an honorary