Traethawd: 'Natur a datblygiad y dehongliad o Gymru gan awduron Eingl-Gymreig a beirniadaeth lenyddol', Prifysgol Lerpwl, 1961 ynghyd â thaflen y seremoni, Mehefin 1961.

Literary papers of Professor Gwyn Williams including typescript texts of This Way to Lethe with notes and correspondence, [c. 1962]; notes for The Avocet, [c. 1970]; material relating to his poetry collections including manuscript and typescript drafts, [1970]-[1980]; typescript and manuscript texts for Troelus a Chresyd, 1954-[1976]; papers relating to Person and Persona, [c. 1981], An Introduction to Welsh Literature, [c. 1978], and ABC of (D.) G. W., [c. 1981]; material relating to translations of Welsh poetry, [1950]-[1976]; material relating to The Land Remembers book and series, [c. 1977]; radio scripts, 1954; texts, drafts, notes, correspondence, maps and photographs relating to his travel writing, [1963]-[1975]; and correspondence with publishers and the BBC, 1951-1978.

Additional literary papers including manuscript works and notes, typescript poems, plays, articles and reviews were received in July 2018; a list and bibliography compiled by the family are inserted in the first box.

A copy of Angela Fish's M. Phil thesis 'Images of Welsh Women as Portrayed by Anglo-Welsh Novelists 1850-1985' (University of Glamorgan, 1995)