British Prime Ministers By DEEZNUTS4PRESIDENT Period: 1940 to 1945 Churchill Conservative Period: 1945 to 1951 Attlee Labour Period: 1951 to 1955 Churchill Conservative Period: 1955 to 1957 Eden Conservative Period: 1957 to 1963 Macmillan Conservative Period: 1963 to 1964 Douglas-Home Conservative Period: 1964 to 1970 Wilson Labour Period: 1970 to 1974 Heath Conservative Period: 1974 to 1976 Wilson Labour Period: 1976 to 1979 Callaghan Labour Period: 1979 to 1990 Thatcher Conservative Period: 1990 to 1997 Major Conservative Period: 1997 to 2007 Blair Labour