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.

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.