Seven letters, 1937-1964, from artist and writer David Jones, Harrow, to the Catholic author and editor Donald Attwater, in which he discusses In Parenthesis and The Anathemata (ff. 23, 24, 28 recto-verso, 29 verso, 32), Welsh history (ff. 24 verso, 27 recto-verso), Welsh place names (ff. 26 verso-27, 29 recto-verso, 30 recto-verso), Cornwall (ff. 29 verso, 30 verso), the Biblical place name Calvary or Golgotha (ff. 30 recto-verso), the attitude of the French authorities to the Breton language (ff. 31 recto-verso), and his inability to learn languages, in particular Welsh (ff. 25, 31 verso).

The papers concern a survey of the counties of Devon and Cornwall undertaken by the Financial Times during 1985.

A transcript of a part of 'The Description of Wales' by George Owen and of a charter granted to Brecon by Philip and Mary, 1554/5; Brecknockshire pedigrees; an account of the princes of Brecon; notes on the parish of St. John the Evangelist and the borough of Brecon; an account of the parish of Llanfyrnach; and 'Collections for Devon and Cornwall copies from the Manuscripts of Sir John St. Aubyn'.

Personal papers of Sir John Williams comprising notes, essays, lectures and transcripts by him, [19th century]-[early 20th century]; certificates and testimonials, 1858-1915; cards and letters from the children of King George V and invitation cards to royal functions, 1889-1916; documents relating to his various honours, 1894-1911; photograph and stamp albums, 1849-[early 20th century]; other photographs, [1840s]-1905; press cuttings, [c. 1870]-1926; letters collected by Sir John, 1633-1912; letters to him, 1879-1922, the correspondents including members of the Royal Family; deeds and other documents relating to properties in Llangadog, to Plas Llanstephan and to Harley Street, London, 1790-1918; bibliographical material, [19th century]-[20th century]; medical notebooks and other papers, 1855-1900; diaries of Sir John and Lady Williams, 1872-1925; estate and financial records, 1890-[1926]; papers relating to public affairs, 1870-1911; miscellaneous items collected by Sir John, 1795-[c. 1919]; personal possessions, including University and commemorative medals, insignia, medical equipment, and ceremonial trumpets, 1861-1913; and deeds collected by Sir John Williams, 1546-1869, comprising deeds of the Vaughan family of Llanelli, Carmarthenshire, the Penry family of Swansea, Glamorgan, and the Dalton family of Pembrey, Carmarthenshire, 1545-1677, relating to properties in Llangennech and Pembrey, Carmarthenshire; deeds of John Jones, Ystrad, Carmarthenshire, relating to Llansadwrn, Carmarthenshire, 1632-1793, and the borough of Carmarthen, 1611-1869; Wynn of Gwydir deeds, 1352-1797, relating mostly to Caernarfonshire, Merionethshire and Denbighshire; miscellaneous Welsh deeds, relating mainly to properties in Carmarthenshire and Cardiganshire, 1451-[c. 1840]; and miscellaneous deeds relating to England (mainly Cornwall and Staffordshire), Ireland, and Scotland, 1586-1896.