Papers of the Rev. Ivor T. Rees, comprising mainly printed political material, 1928-1997, including election literature and candidates' addresses for British elections from Wales, England, Scotland and Northern Ireland and election literature, newsletters and press cuttings relating to minority parties such as the Socialist Party of Great Britain, 1951-1970; National Democratic Party/National Front/British National Party, [c. 1970's]-[1990's], and papers relating to Lt Commander W. G. Boaks, who stood as an independent candidate in many elections between 1951 and 1982, [c. 1970s-1980s]; articles and obituaries relating to politicians and other prominent individuals, [c. 1970s-1990s]; index cards containing details of British Parliamentary candidates who stood in British Parliamentary elections, 1910-1983; together with miscellaneous papers, 1948-1985; newspaper cuttings, 1931-1999 relating to Welsh politics, including the first election for the National Assembly for Wales and electoral candidates in Wales; and election leaflets mostly for the county council elections, 6 May 1999, in Swansea, Sketty, Anglesey, Vale of Glamorgan and Rhonda Cynon Taf.
Additional donations also include papers, 1999-2017, consisting mainly of printed material from web pages, press cuttings, and campaign material and election addresses relating to prominent Welsh politicians both in the Welsh Assembly and UK Parliament; 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 in UK Parliamentary elections, Welsh Assembly elections, and European Parliament Elections; a large number of candidates' and politicians' biographies (1885-2018), and questionnaires for candidates standing in various 20th- and 21st- century elections (1997-2017; 2019); and a large number of papers including press cuttings and 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; and some typescript copies of Ivor T. Rees' works.

Papers of J. L. Williams, MP, including correspondence, 1950-1979; student essays, 1919-1920, and lecture notes; articles, letters and notes for speeches, [1945]-[1951]; press cuttings, mainly from the Cambrian News, relating to local history, 1920-1976, and from Forward, 1929-1952, including articles written by JLW; press cuttings and ephemera relating to the general elections of 1945-1955 and to various local elections at Glasgow, 1937-1951; extracts from Hansard, 1945-1949; and essays submitted for eisteddfod competitions, 1924-1960.