Papers, 1936-1983, relating to Railway Trade Union Branches at Aberystwyth, including registration cards of members of the National Union of Railwaymen, 1936-1974; minutes of Local Departmental Committee meetings, 1958-1968; a volume containing carbon copies of letters, 1964-1966, mainly written by John Alfred Davies (Local Departmental Committee Secretary); and correspondence, 1967-1983, of the Associated Society of Locomotive Engineers and Firemen.