Papers of Goronwy R. Jones, 1941-1969, including correspondence, 1941-1969, files relating to trade union activities at several collieries, 1958-1967, notes and notebooks, typescripts relating to the South Wales coal industry, 1962-1967, and printed items, 1958-1963; papers of William J. Fortt, 1958-1968, including papers relating to the South Wales coal industry and the South Wales Area of the National Union of Mineworkers, notes, drafts of speeches and press cuttings.

The group consists of Communist Party Wales District papers, including papers relating to Congress, 1945-1991, the Welsh executive committee, 1958-1991, and the Wales District, 1916-2002. The group includes publications, 1884-1998, subject files, 1935-2000, and files relating to Party education, 1929-1998, devolution in Wales and Scotland, 1936-1998, industry and industrial disputes, including the miners' strikes, 1892-1998, campaigns for peace, anti-apartheid, peoples march for jobs, and the poll tax, 1919-1995, and elections, 1934-1996.