The literary and academic papers, 1921-1992, of Prof. Gwyn Jones, comprising correspondence, 1936-1991; manuscripts and typescript drafts of his literary works, 1939-1992, including poetry and prose; translations of the Mabinogion and Icelandic sagas, 1921-1991; the history of Scandinavia, 1961-1988; his work as editor of various publications such as The Welsh Review, Welsh Short Stories and the Oxford Book of Welsh Verse in English, 1935-1977; papers relating to the establishment of a national theatre for Wales, 1962-1977; articles, lectures and broadcasts on various topics, 1942-1992; together with some personal papers and publications of other authors.