The Centre contains a substantial number of R.S. Thomas manuscripts, including unpublished poetry and prose. The collection also contains material by Thomas’s wife, M.E. (Elsi) Eldridge, including sketchbooks and her unpublished journals. The Centre has copies of all of R.S. Thomas's published works, including rare editions and translations. In addition it contains a comprehensive collection of reviews, critical books and articles and newspaper clippings, as well as video and audio material.
This material is available for postgraduate students working for higher degrees on R.S. Thomas at Bangor, either in the Welsh Department or the English Department, and to visiting scholars and registered postgraduate students from other institutions.