Papers, 1966-1967, relating to the public inquiry into the Aberfan tip disaster of 21 October 1966, together with some additional material relating to the Aberfan Parents' and Residents' Association, 1966-1973, including copies of the Proceedings of the Public Inquiry in the form of typescript notes taken by Treasury Reporters, 1966-1967, other notes and speeches relating to the Tribunal by Cyril Moseley, Aubrey Myerson, and Desmond Ackner, QC, 1966-1967, various Tribunal documents with an index, 1947-[1967], correspondence, 1966-1973, and original statements and copies taken on behalf of Aberfan Parents' and Residents' Association [1966]-[1967]. It should be noted that these are not the official records of the Tribunal, although a largely complete set of documents, plans and photographs submitted to the Tribunal is included.

Papurau y Parch. Evan Wyn Williams, 1966-1969, yn cynnwys papurau'n ymwneud â thrychineb Aberfan, 1966-1968; a phapurau'n ymwneud â chanmlwyddiant Capel Coffa (1869-1969) Edward Jones ym Mathafarn = Papers of Rev. Evan Wyn Williams, 1966-1969, comprising papers relating to the Aberfan disaster, 1966-1968; and papers relating to the centenary of Capel Coffa (1869-1969) commemorating Edward Jones at Bathafarn.

Correspondence, press cuttings, papers and campaigns of the Aberfan Disaster and the Aberfan Disaster Fund, 1966-1968; religious life of Aberfan, 1967-1968, and miscellanea, 1958-1980; personal correspondence, 1958-1967; press cuttings, 1967-1973; journals and leaflets, 1968-1979; and papers relating to his ministry in Melbourne, Australia, 1990.

Papers relating to the beginnings of Tŷ Toronto, 1966-1984; poems and letters relating to the disaster, 1966-1973; minutes, letters and papers of various groups which were founded as a result of the disaster, namely the Uniting Group, 1965-1969, Committee for Dismantling the Heaps, 1967-1970, Aberfan and Merthyr Vale District Group, 1969-1984, Aberfan and Merthyr Vale Youth Centre, 1968-1972; also included are the papers of Headway press, 1967-1995; papers of the Merthyr Council of Churches and the Aberfan and Merthyr Vale Council of Churches, 1965-1986; and other papers relating to conferences and other significant events, 1961-1985.

Papers relating to the begining of Tŷ Toronto's wider work in the valleys, 1963-1971; papers relating to the grants received by Tŷ Toronto, 1972-1983; records of interviews held by Erastus Jones, 1972-1979, and correspondence concerning the same, 1979-1983; papers relating to the conferences on the history of the valleys, 1973-1985; reports, papers and notes concerning Tŷ Toronto's work, 1972-1979; and Tŷ Toronto publications, 1974-1978.