Cockfield joined the Inland Revenue in 1938, and was called to the bar at the Inner Temple in 1942. He progressed rapidly within the Inland Revenue, serving as Director of Statistics from 1945 to 1952 and as a Commissioner from 1951 to 1952, before joining Boots as its finance director. He was its managing director and chairman from 1961 to 1967. He was also a member of Selwyn Lloyd's National Economic Development Council from 1962 to 1964. Cockfield was known by his first name, Frank, for most of his life but hated it. When he married his first wife, Ruth Simonis, his granddaughter, Emma, recalls how he told her he wished to use his middle name instead: "All my life I've been called Frank but I've hated it- you're to call me Arthur." Cockfield left Boots to become an adviser to the Conservative politician Iain Macleod on taxation and economic matters, and was president of the Royal Statistical Society from 1968 to 1969. Macleod died shortly after the Conservatives took power in 1970, but Cockfield went on to advise Anthony Barber, Macleod's successor as Chancellor of the Exchequer, until 1973. He then served as chairman of the Price Commission from 1973 to 1977, receiving a knighthood in 1973 New Years Honours List.
Political career
Cockfield was created Baron Cockfield, of Dover in the County of Kent on 14 April 1978. On the election of Margaret Thatcher to office in May 1979, he became a Minister of State at the Treasury, a post he held until April 1982. He became a member of the Privy Council in 1982, and was the last Secretary of State for Trade from 1982, before it was merged with the Department of Industry in 1983. After the 1983 general election, Cockfield became Chancellor of the Duchy of Lancaster. In this role he had no specific departmental responsibilities, so he effectively became an advisor and a sort of one-man think-tank to the Prime Minister. Lord Cockfield resigned from the cabinet in September 1984 to join the European Commission as commissioner for Internal Market, Tax Law and Customs under Jacques Delors, and a Vice-President of the first Delors Commission. He was expected to follow Margaret Thatcher's eurosceptic line, but became a driving force in laying the groundwork for the creation of the Single European Market in 1992. Only a few months after he arrived in Brussels, he produced a mammoth white paper listing 300 barriers to trade, with a timetable for them to be abolished. He was not selected to serve a second term, and was replaced by Leon Brittan. After leaving the Commission in 1988, Cockfield became a consultant for accountants Peat, Marwick, McLintock. He was awarded the Grand Cross of the Order of Leopold II of Belgium in 1990, and honorary doctorates and fellowships from a number of British and American universities.
Personal life
He married twice. He married his first wife, Ruth Helen Simonis, in 1943, but they divorced in the early 1960s. They had two children: a daughter, Hilary Ann Cockfield, born June 1944; and a son, Roger Edmund Cockfield, born 21 November 1947. He had five grandchildren by his 1st wife; daughter Hilary had daughter Juliet and sons Christopher and Patrick Williams; Roger had two girls Catherine Rosemary, born 31 December 1977, and Emma Anne Alexandra Cockfield born 5 July 1981. He later married choreographer Monica Mudie, in 1970; she died in 1992. He was survived by his son Roger and daughter Hilary and five grandchildren from his first marriage. Lord Cockfield is buried, along with his wife Monica, on the Isle of Man.
