Material comprises drafts, transcripts and offprints of articles, research notes and correspondence.
- Letters: Addressed to Professor H.G. Wright, from former students of his (Robert Hamilton, P.F. Swinnerton and D.W. Turberville) serving abroad in the armed forces, 1941-44.
- Algernon Charles Swinburne:Transcript by H.G. Wright, of a pamphlet by Algernon Charles Swinburne entitled The Saviour of Society: Two Sonnets and a Controversy, (1909).
- Thomas Love Peacock and Wales:Drafts of the introduction to a projected edition by H.G. Wright of The Misfortunes of Elphin, and a group of papers (notes, correspondence etc.), the result of research into Peacock's connections with Wales by G.J. Williams of Coed Menai, Bangor.
- Shelley in Wales: Material collected by G.J. Williams of Coed Menai, Bangor, for a study of Shelley's connections with North Wales.
- An Anglo-Welsh Anthology:Typescript with handwritten notes of a work intended for publication.
- English writers and Wales (1770-1900):Drafts of a series of articles, with a general introduction, on various writers, including, Michael Faraday, Arthur Hugh Clough, Reginald Heber, Anna Seward, Wordsworth, Tennyson and Coleridge.
- Cowper's translations from Madame Guyon: Incomplete drafts of an article.
- The vagabond theme in literature:Draft of an article or lecture.
- Robert Potter:Material collected for a study of the writings of Robert Potter (1721-1804), poet and politician.
- The sense of historical continuity in English literature:Draft of an unpublished book. Contains studies of Scott, Housman, Masefield, Drinkwater, Kipling, Belloc, Doughty, Edward Thomas and Hudson.
- Some great book-collectors:Draft of an article.
- Mandeville's Travels:Draft of an article.
- The Emperor Otho, by Sir Henry Herbert, edited by Herbert G. Wright:Typescript.
- Bibliographical list of articles, by H.G. Wright, not including those on Anglo-Welsh relations.
- Offprints of articles by H.G. Wright which appeared in the Review of English Studies, and The Modern Language Review, 1927-1959.
- Copies of The Welsh Outlook, 1922-1931, containing articles by H.G. Wright on Anglo-Welsh relations.
- Photocopy of a British Museum Manuscript 29494 used by H.G. Wright in preparing the text of A Seventeenth-century modernisation of the first three books of Chaucer's Troilus and Criseyde, 1960.