Dr Ceinwen Thomas was a member of the Welsh Language Research Unit in University College Cardiff.
Folders of notes, pamphlets on Welsh language, Plaid Cymru, Welsh devolution, castles and churches, language revival and minority languages (Cornish, Breton etc.).
46 magnetic tape reels (Welsh Language Research Unit), A3 atlas of Wales, facsimile of deeds to Llandaff House Estate, manuscript notes, newspaper cuttings, box of index cards, correspondence.
Loose press cuttings, with a few pamphlets and leaflets presented by Dr Ceinwen H. Thomas. The cuttings relate to the language and political issues in Wales from 1966 to 1970, including the election of Gwynfor Evans in 1966, the trial of John Jenkins (1970), the Welsh Language Society, the Investiture (1969).
Order of service for Ceinwen Thomas' funeral, 2008.