being little active in his last Parliament, Mainwaring announced his retirement a year before the 1959 general election. He lived to the age of 87. References External links 1884 births 1971 deaths Politicians from Swansea British trade unionists Miners' Federation of Great Britain-sponsored MPs National Union of Mineworkers-sponsored MPs Welsh Labour Party MPs UK MPs 1931–1935 UK MPs 1935–1945 UK MPs 1945–1950 UK MPs 1950–1951 UK MPs 1951–1955 UK MPs 1955–1959 Welsh miners