A mimeographed copy of a list of books and manuscripts from the Crosswood Library at the Welsh Library of the University College of Wales, Aberystwyth, and draft bibliographies on general British history by John Edward Lloyd, on Welsh history, 1282-1500, by Dr. William Rees, and on political thought in Wales in the nineteenth century by Thomas Evans.

The catalogued portion of the archive contains records of the family of Owen, later Humphreys-Owen, of Glansevern, and Johnes of Garthmyl, mainly comprising title deeds and documents, [late 12 cent.]-1929, mainly relating to property in Montgomeryshire; estate papers, 1767-1924, including rentals, accounts and surveys; records relating to Campobello island, New Brunswick, Canada, 1767-1902; substantial family correspondence, 1633-1926, political correspondence of Arthur Charles Humphreys-Owen, 1856-1905, including letters from Lord Rendel; naval papers of Captain William Owen, 1746-1778, [c. 1797]. The uncatalogued part of the archive includes correspondence of the Owen and Humphreys-Owen families, 1754-1905; pedigree of the Owen family, 1839; and material relating to S. P. F. Humphreys Owen, [c. mid 20 cent].

Papers collected by John Bryn Roberts, including correspondence, 1830-1887; legal certificates, 1863-1897; diaries, 1838-1930, kept by Bryn Roberts and some other members of the Roberts family; photographs, [c. 1880]-1924; notes on legal cases and topics, [c. 1902]-[c. 1921]; letters, 1888-1926, from John Bryn Roberts to the press; newspaper reports transcribed, 1883-1905; notes for his speeches, 1885-1905; notes on political topics, [c.1892]-[1926]; general notes, [1860]-[1894]; election addresses, 1885-1924; political leaflets and pamphlets, 1880-1927; official publications, 1889-1927; legal publications, 1863-1930; miscellaneous printed matter, 1883-1925; Calvinistic Methodist papers, 1844-1928; papers relating to the University of Wales, mainly the University College of North Wales, Bangor, 1882-1926; newspaper and magazine cuttings, 1874-1929; newspapers and periodicals, 1902-1928; bills and receipts, 1781-1926; notebooks and account books, 1833-1900.

Some sixty letters, 1886-1913, to Alfred Thomas, 1st baron Pontypridd, relating mainly to national and local politics and to secondary and university education in Wales. The correspondents include Sir Edward Anwyl (1) 1905, Henry Austin Bruce, Lord Aberdare (1) 1886, Sir D. Brynmor Jones (2) 1900, J. Viriamu Jones (3) 1900, Sir Isambard Owen (1) 1893, Robert Threshie Reid, Lord Loreburn (4) 1908-1911, Lord Rendel (2) 1899, 1902, and Charles Vaughan, dean of Llandaf (6) 1888-1897.

Papers, 1885-2018, relating to elections held in Wales and Welsh constituencies from the 19th to the 21st centuries and politicians who have stood as candidates, including for UK Parliamentary elections, Welsh Assembly elections, and European Parliament Elections. The papers include a large number of candidates' and politicians' biographies (1885-2018) questionnaires for candidates standing in various 20th- and 21st- century elections (1997-2017); and a large number of papers including press cuttings, printed material from web pages, relating to UK Parliamentary, Welsh Assembly, and European Parliament elections (1892-2018), including campaign material and election addresses relating to candidates standing in Welsh constituencies.

A collection of press cuttings relating to T. E. Ellis and to Welsh politics, some of which are contributed by T. E. Ellis.

Papers of William George, Criccieth, consisting of his personal and family correspondence, diaries and notes, 1881-1960, and papers relating to his publications and public life (including political, legal, religious and Welsh cultural material), 1883-1958, together with diaries, 1881-1915, of Richard Lloyd ('Uncle Lloyd'), and a considerable amount of correspondence and other papers relating to members of the George family, the Lloyd family and the Lloyd George family, 1766-1981. Of particular interest is a very substantial group of papers of David Lloyd George, including: correspondence with William George, mostly 1886-1918; diaries, 1878-1892; letters from prominent politicians, 1879-1913; other letters, including many to family members, 1883-1928; letters from his secretaries, 1906-1963; and working drafts and notes in preparation for his speeches.

A manuscript address, in Welsh, February 1964, by T. I. Ellis, on Welsh politicians and politics in the previous century; it was delivered at a meeting of Cymdeithas y Bedol, 6 March 1964.