Press cuttings relating to Wales and Welsh culture, such as religion, politics, literature, music, education, St. David's Day celebrations and the Eisteddfod Genedlaethol, individuals, and the National Library of Wales [1895]-[1939].

Correspondence and papers relating mainly to Lord Hooson's political career, including papers regarding parliamentary questions, 1967-1978; the Welsh Liberal Party, 1963-1979; Montgomery County Liberal Association 1965-1979; Welsh Affairs, 1961-1978; University College of Wales, Aberystwyth, 1961-1968; Dyfed-Powys Constabulary, 1970-1976; foot and mouth disease in Wales, 1967-1968; transport problems in Mid-Wales, 1962-1974; National Theatre for Wales, 1968-1969; Rural Development Board for Wales, 1967-1970; Mid-Wales Hospital Service, 1972-1973; Farmers Union of Wales, 1966-1973; Aberfan Disaster, 1966-1967; television and radio reception in Wales, 1969-1976; Wales Tourist Board, 1968-1976; Plaid Cymru, Welsh nationalism, Welsh language, Devolution, Federalism, Welsh economy, unemployment, Rhondda West by-election, etc., 1960s-1970s; the Liberal Party correspondence, 1960s-1970s, Liberal Party organisation and policies, 1967-1971; Liberals and the Industrial Relations Bill, 1971-1973; Lib-Lab pact, 1977-1978; Liberal Foreign Affairs Panel, 1966-1967; NATO and the North Atlantic Assembly, 1966-1978; correspondence files of the Welsh Liberal Party, 1966-79; engagement diaries, 1966-1978; typescript speeches and notes for speeches, 1960s-1970s; parliamentary accounts, 1970-1972; miscellaneous speeches, press statements, newspaper cuttings, etc., 1960s-1970s; political papers [c. 1950]-1973, produced by various parties; Local Government Reform in Wales, 1993-1994; the Liberal Party's Pantyfedwen Conferences, 1956-1963; the London Welsh School, 1983-1993, the Llangollen International Eisteddfod, 1986-1997; the provision of speech therapy and physiotherapy in Clwyd, 1984-1990; constituency correspondence and papers, [1960]-1979; personal correspondence, 1965-1979; and correspondence, press releases and newspaper cuttings relating to Jeremy Thorpe, former leader of the Liberal Party, 1967-1979; together with papers relating to his business interests including, Laura Ashley Holdings Plc., 1984-1997; Severn River Crossing Plc, 1990-1997; and his legal career, 1949-1962. A further collection of Lord Hooson's papers were received in May 2011 - this group remains uncatalogued.

Press cuttings of articles, poetry and miscellaneous notes by 'Rhuddenfab', including notes on 'eisteddfodau'; a series of seventy articles entitled 'Deugain Mlynedd yn Ôl' by 'Rhen O', i.e. 'Rhuddenfab'; and autograph letters to 'Rhuddenfab' from Rowland Williams ('Hwfa Môn'), Sir George Osborne Morgan, John Davies ('Taliesin Hiraethog'), William Jones ('Ehedydd Iâl'), J. Ceulanydd Williams ('Ceulanydd'), Richard Davies ('Mynyddog') and John Thomas ('Eifionydd'); etc.

An analysis of the National Eisteddfod music competitions, 1899-1908, giving subjects, adjudicators and prizes.

Papurau Gwilym Wyn yn cynnwys barddoniaeth a rhyddiaith, beirniadaethau eisteddfodol, traethodau a nodiadau ar gyfer sgyrsiau a phregethau, [1852]-[1914] = Papers of Gwilym Wyn comprising poetry and prose works, eisteddfodic adjudications, essays and notes for talks and sermons, [1852]-[1914].

Papurau, 1838-[1991], yn bennaf papurau personol a theuluol Eunice Bryn Williams, 1838-[1991], yn cynnwys darnau cerddoriaeth yn llaw Eunice Bryn Williams, 1954-[1980au]; nodiadau darlithoedd ar gerddoriaeth, [1940au-1980au]; papurau'n ymwneud â Chymdeithas Alawon Gwerin Cymru a Chymdeithas Cerdd Dant Cymru, [1950au-1980au], ac eisteddfodau, yn arbennig Eisteddfod yr Urdd, [1930au-1980au]; rhaglenni cyngherddau o gerddoriaeth Cymreig, 1939-1961; a gohebiaeth deuluol,1888-1961. = Papers, 1838-[1991], mainly personal and family papers of Eunice Bryn Williams, 1838-[1991], including music pieces in the handwriting of Eunice Bryn Williams, 1954-[1980s]; lecture notes on music, [1940s-1980s]; papers relating to Cymdeithas Alawon Gwerin Cymru and Cymdeithas Cerdd Dant Cymru, [1950s-1980s], and to eisteddfodau, especially Eisteddfod yr Urdd, [1930s-1980s]; concert programmes of Welsh music, 1939-1961; and family correspondence, 1888-1961.

Notices, 1819-1853, mainly declaring that local eisteddfodau are to be held. Most of the notices are issued by the Cymmrodorion Society in Powys, 1819-1824. There are also two copies of a notice concerning the Royal Denbigh Eisteddfod in 1828 and one issued by the Abergavenny Cymreigyddion in 1853.

General letters, 1859-1907, to Gwilym Cowlyd interspersed with a few other papers. Many are on literary and poetic themes and some refer to the publication, sale and purchase of various monographs and journals. A number relate to the holding of national and local eisteddfodau, several inviting Gwilym Cowlyd to act as adjudicator. Some concern the publication of his adjudications. Some poets submit their work to Cowlyd for his opinions. Many also contain references to the affairs of Gorsedd Beirdd Ynys Prydain. Many of the letters from 1904 concern the offer made by Gwilym Cowlyd to hand his personal library of books and other materials to the Llanrwst Urban District Council. The correspondents include George Osborne Morgan MP (2), 1878-1885.

Miscellaneous, stray letters, 1873-1902, addressed to Gwilym Cowlyd. Most of the letters concern literary matters, the sale and purchase of books and journals, publishing, and the convention of various eisteddfodau. Often Gwilym Cowlyd is invited to attend and adjudicate at eisteddfodau. The correspondents include Sir John Ballinger, 1893, Thomas Gee (2), 1877-1889, and Alfred Neobard Palmer, 1882.

Adjudications, 1877-1895, many undated, by Gwilym Cowlyd for various eisteddfodau, together with copies of some of the poems and a few related letters and press cuttings.

An annotated list of 'eisteddfodau' held between 1816 and 1884, with details of the principal subjects set for competition, the names of the winners, etc.

Letters, 1902-1947, to D. R. Hughes; letters of literary interest, 1835-1902, collected by D. R. Hughes; material relating to the National Eisteddfod, 1881-1944, including poetry, 1881-1936; miscellaneous periodicals and books, 1904-1945; manuscript and newspaper cuttings belonging to the Rev. John Jones, Talysarn, Sir John H. Puleston and T. R. Roberts, [1857x1940].

Papers of the Rev. William Rees, 1872-[1930s], including a volume of pryddestau and englynion by William Rees successfully submitted for competition at various eisteddfodau, 1872-1910; and a further six volumes of poetry by Rees; a volume of hymns, 1919-1925; two volumes of writings; and a volume containing a pryddest, 1931, by D. Emrys James ('Dewi Emrys').