Since the evolution of the position, the Prime Minister has also served as First Lord of the Treasury in all but two cases. The initial linkage of the two offices is not surprising, since at the formation of the office the First Lord of the Treasury did indeed take part in running the Treasury, and as First Lord was the most senior person so tasked. Since control of money usually granted most power, it is not surprising that such a person would head the government as a whole. Indeed, even after decades of the emergence of the premiership,
William Pitt the Younger proffered that the Prime Minister "ought to be the
person at the head of the finances." The two exceptions were
Lord Chatham and Lord Salisbury. During Chatham's ministry of 1766–68 he occupied the office of
Lord Keeper of the Privy Seal instead. Lord Salisbury became First Lord neither during his first term (1885–1886) nor his third (1895–1902), though he did become First Lord for the first two years of his second ministry (1886–1892). Since Salisbury, the two roles have become completely concomitant, so much so that the Prime Minister's official residence,
10 Downing Street, is in fact the official residence of the First Lord of the Treasury, which title is named on the letter box. Salisbury, as a marquess of vast independent wealth, had no use of an official residence, instead living in his grander
town house at 20 Arlington Street in
St James's, and could instead bestow it as a perquisite to other ministers, along with the First Lordship itself. Other positions have been linked to the Prime Ministership as well. Continuously since 1968, when the position was created by
Harold Wilson, the Prime Minister has also served as
Minister for the Civil Service. The adoption of this additional position was directly linked to reforms to HM Treasury, being created when responsibilities for the pay and management of the civil service was transferred from the Treasury to a new Civil Service Department. Since the Prime Minister was a Lord Commissioner of the Treasury, prior to the reform he had had
ex officio oversight of these portfolios, but it was felt more proper for the civil service to be held outside of a particularised department. Nevertheless, in recognition of the primary authority of the Prime Minister over the Civil Service, it is a constitutional convention that the Ministry would always be held by the Prime Minister. Though the Civil Service Department was abolished by
Margaret Thatcher in 1982, the title was retained. Whereas the First Lordship of the Treasury has been a complete sinecure for some time, the functions of the Minister for the Civil Service have at times required the Prime Minister to discharge policy and be held accountable for it. For instance, it was occupying this role which saw the Prime Minister sued for her policies in
Council of Civil Service Unions v Minister for the Civil Service. Other offices have historically been linked to the Prime Ministership but are no longer. Until
Clement Attlee became Prime Minister, the vast majority of premiers had served as either
Leader of the House of Commons or
Leader of the House of Lords depending on the chamber in which they sat. As the power of the executive swelled, the need to have a legislative-oriented office receded. In 1942 during the
Second World War Winston Churchill had made himself Minister of Defence, a title Prime Ministers would hold for thirteen years thereafter, but with the decline of defence as an urgent policy area this was abandoned by Sir
Anthony Eden when he came to office in 1955.
Boris Johnson held the position of
Minister for the Union, which he created to display his commitment to strengthening the bond of the four nations of the United Kingdom. This role was retained by his successor
Liz Truss. Accordingly, the First Lord of the Treasury is the title most associated with the Prime Ministership. Seven Prime Ministers saw fit to occupy the post of First Lord of the Treasury only, and held no other subsidiary office. Those Prime Ministers were
Charles Watson-Wentworth, 2nd Marquess of Rockingham (1782),
William Cavendish-Bentinck, 3rd Duke of Portland (1807–1809),
David Lloyd George (1916–1922), Sir Anthony Eden (1955–57),
Harold Macmillan (1957–1963), Sir
Alec Douglas-Home (1963–1964), and Harold Wilson (1964–1968, at which point he also became Minister for the Civil Service). ==See also==