sentences:  He was elected as the Member of Parliament (MP) for Glasgow Maryhill at the 1945 general election, and held the seat until his retirement at the February 1974 general election.He was a Lord of the Treasury from 1946 to 1951, and parliamentary private secretary (PPS) to George Brown at both the Department of Economic Affairs and the Foreign Office from 1964 to 1968.Hannan, a committed pro-European, was one of 69 Labour MPs to break a three-line whip and vote for Britain's entry into the European Economic Community in October 1971.