Cofnodion Plaid Cymru, 1915-1999, yn cynnwys cofnodion, agenda and gohebiaeth y pwyllgor gwaith a phwyllgorau eraill, 1925-1997; gohebiaeth gyffredinol, 1925-1998, gyda nifer o aelodau a swyddogion blaenllaw y blaid; cofnodion, gohebiaeth a phapurau eraill y gwahanol bwyllgorau rhanbarthol, 1925-1997, a changhennau,1930-1992; cofnodion a dogfennaeth y Cyngor Cenedlaethol, 1967-1997; cofnodion ariannol, yn cynnwys rhai papur newydd misol y blaid Y Ddraig Goch a Welsh Nation a Chronfa Gŵyl Ddewi, 1927-1996; rhaglenni a threfniadau ar gyfer cynadleddau ac Ysgolion Haf, 1933-1998; cofnodion aelodaeth, 1930-1996; papurau y Grŵp Ymchwil, [c.1960]-1995; papurau, yn cynnwys areithiau ac effemera, yn ymwneud ag etholiadau, 1929-1999; papurau yn ymwneud ag Adran y Menywod, 1924-1996, a'r Mudiad Ieuenctid, 1964-1998; papurau yn ymwneud â refferendwm datganoli 1979,1969-1983, a refferendwm 1997, a Chynulliad Cymru,1992-1998; papurau yn ymwneud â Y Ddraig Goch, Welsh Nation a chyhoeddiadau eraill, 1932-1996; deunydd printiedig gan Blaid Cymru ac eraill yn cynnwys llyfrau, cyfnodolion a phamffledi,1913-1996; torion o'r wasg, 1924-1996; cylchlythyron, 1938-1992; papurau yn ymwneud â'r Blaid Seneddol,1980-1996; papurau unigolion ac rhai ar wahanol bynciau amrywiol, 1926-1998 = Records of Plaid Cymru, 1915-1999, including minutes, agendas and correspondence of the executive and other committees, 1925-1997; general correspondence, 1925-1998, with many prominent party members and officials; minutes, correspondence and other papers of the various regional committees, 1925-1997, and branches, 1930-1992; minutes and records of the National Council, 1967-1997; financial records, including those of the party's monthly newspaper Y Ddraig Goch and Welsh Nation and Cronfa Gwyl Dewi, 1927-1996; arrangements for and programmes of conferences and Summer Schools, 1933-1998; membership records, 1930-1996; papers of the Grŵp Ymchwil (research group), [c.1960]-1995; papers, including speeches and ephemera, relating to elections, 1929-1999; papers relating to the Adran Menywod (Women's Section), 1934-1996, and the Mudiad Ieuenctid (Youth Movement), 1964-1998; papers relating to the 1979 devolution referendum, 1969-1983, and the 1997 referendum and Welsh Assembly, 1992-1998; papers relating to Y Ddraig Goch, Welsh Nation and other publications, 1932-1996; printed matter by Plaid Cymru and others including books, periodicals and pamphlets, 1913-1996; press cuttings, 1924-1996; circulars, 1938-1992; papers relating to the Parliamentary Party, 1980-1996; papers of individuals and to various miscellaneous topics, 1926-1998.

Dau focs yn cynnwys papurau amrywiol; Awst 2023.

Un bocs yn cynnwys papurau ychwanegol; Mehefin 2024.

Papurau gweinyddol ac ymgynghorol, pamffledi a thapiau VHS; Medi 2024.

Papurau amrywiol, [c. 1807]-1884, wedi eu tynnu o ddyddiaduron S.R. (NLW 14035-60A) yn LlGC a'u trefnu, [c. 1940], yn fras yn bedwar grwp. = Miscellaneous papers, [c. 1807]-1884, removed from the diaries of S.R. (NLW 14035-60A) at NLW and arranged, [c. 1940], broadly into four groups.
Maent yn cynnwys papurau ariannol yn ymwneud a'i ymfudo i Tennessee, 1840, 1856-1870 (ff. 1-11); torion papur newydd, 1876-1884 (ff. 12-45); papurau ariannol yn dyddio o'i gyfnod yng Nghonwy, 1873-1883 (ff. 46-70); a darnau o farddoniaeth a rhyddiaith yn Saesneg, [c. 1807]-[1823] (ff. 75-79). = They include financial papers relating to of his emigration to Tennessee, 1840, 1856-1870 (ff. 1-11); newspaper cuttings, 1876-1884 (ff. 12-45); financial and other papers dating from his time in Conwy, 1873-1883 (ff. 46-70); and items of poetry and prose in English, [c. 1807]-[1823] (ff. 75-79).

A volume of press cuttings, 1899-1955, entitled 'Folia Siccata, Ludibria Venti (Feuilles mortes, jouets du vent) (Deliou kras, c'hoariellou avel)', collected by Taldir; many of the cuttings relate to him.

Papers of Alfred T. Davies, 1875-1965, including family and personal correspondence, 1887-1949; papers relating to the British Prisoners of War Book Scheme, 1914-1918; and papers relating to his works, including Student captives, I (1917), Student captives, II, Robert Owen... a memoir (1948), The Lloyd George I knew (1948), and intended books Light through prison bars and Owned of God: or Moody and Sankey, 1875 and 1883: some memoirs and a tribute, with a Welsh translation by Rev. E. K. Jones, 1945. Also three bound volumes of the printed magazine produced by civilian prisoners at Ruhleben Camp near Berlin.

Newspaper cuttings, 1898, 1924-1937, relating mainly to Annie Hughes-Griffiths activities, together with a few concerning T. I. Ellis.

The second of two volumes (see also NLW MS 4552D) containing press cuttings, 1827, [1850]-1871 and undated, collected by John Ceiriog Hughes (Ceiriog) which were previously pasted into the volume now NLW MS 4551E.
This volume contains cuttings of poetry, book reviews, eisteddfod programmes, posters, reports of meetings in the Manchester district and in Wales, etc., mainly in Welsh.

Miscellaneous papers of Thomas Darlington, one of his Majesty's Inspectors of Schools in Wales, including essays and articles, drafts of speeches and addresses, letters from Ellis Edwards, Tom Ellis, Beriah Gwynfe Evans, D. Silvan Evans, David Howell (Llawdden), J. Puleston Jones, Sir John Rhys, A. Neobard Palmer, and Hugh Williams, and press cuttings.

A notebook containing pasted in newspaper cuttings, 1889-[1890s], relating mainly to Aberystwyth.

Correspondence and other papers, 1947-1982, of the antiquarian J. D. K. Lloyd, Garthmyl, relating to his friend the poet Sir John Betjeman, including four letters, seven postcards and a compliments slip, some typed, 1970-1978 and undated, from Betjeman to Lloyd (ff. 1-4, 7-14). The letters are mostly personal, routine or frivolous; there are references to a print interview conducted by Wilfred De'Ath (f. 7) and to architectural conservation, with several mentions of Lloyd's brother, Wyndham E. B. Lloyd.
Also included are a postcard, 23 March 1970, from A. L. Rowse, Oxford, to Betjeman, later forwarded by him to Lloyd (f. 5), a postcard, 1 June 1973, from an unknown sender, enclosing a pasted-on press cutting of part of Betjeman's 'Lenten Thoughts…' (f. 6) and a carbon copy typescript letter, 23 July 1975, to Peter Topley, likely from Betjeman (f. 15); Betjeman's notes for a talk on poetry at Newtown High School, [18 December 1963] (f. 16); transcripts by Lloyd of '"9 AM" Unpublished poem by John Betjeman; of which Wyndham has his MS copy' (f. 17) and of the [12] March 1974 letter (f. 18; see f. 7); a list by Lloyd of poems omitted from [an unspecified edition of Betjeman's Collected Poems] (ff. 19-20); printed ephemera and invitations for Betjeman's Honorary Degree ceremony at Trinity College Dublin on 10 July 1975, attended by Lloyd (ff. 22-32); and press cuttings relating to Betjeman, 1947-1982 (ff. 33-40), including the 1974 Wilfred De'Ath interview 'The lonely Laureate' (f. 38; see ff. 7, 18). Betjeman signs several letters 'Evan ap etje' (ff. 3-4, 8-9, 10, 14) and addresses Lloyd as 'Widow' or 'Gwyddo' [i.e. 'Gweddw'?].

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].

Letters, 1893-1897, from Charles Ashton, Dinas Mawddwy, to Hubert Smith, Bournemouth (sometime town clerk of Bridgnorth), and press cuttings, 1899, relating to Charles Ashton, etc.

Four scrapbooks, compiled [1900]-[1910], containing press cuttings and letters, [1869], 1893-1910, relating to the political career of A. Osmond Williams, MP, and to his son Lieut. Osmond T. D. Williams.
The scrapbooks were evidently compiled by a member of A. Osmond Williams' family, probably his sister Alice or his mother Annie; with a few exceptions the cuttings are dated no later than early 1904, coinciding with Annie's death in June of that year.

Llyfr nodiadau yn cynnwys torion o'r wasg, yn bennaf o erthyglau Evan Roberts yn Y Seren, 1932-1937 (tt. 1-107 yn bennaf), gyda rhai torion rhydd, 1927-1937. Ceir yn ogystal nifer o erthyglau yn llaw Evan Roberts ar gychwyn a diwedd y gyfrol, gan gynnwys 'Hen Chwaraeon neu Gampau'r Cymry' (ff. 1-13).

Copïau a thorion o wahanol bapurau newydd, yn cynnwys Y Cymro, Y Cyfnod, ac eraill, 1931-1967, nifer yn cynnwys eitemau yn ymwneud ag Evan Roberts ac ambell i erthygl ganddo.
Mae'r ffeil hefyd yn cynnwys 'Hynodion Hen Gymeriadau Llandderfel gan Evan Roberts', llyfryn yn cynnwys llungopiau, [?20 gan., hwyr], o'i erthyglau yn Cymru, 71 (1926) a 72 (1927).

Six notebooks containing cuttings of articles by Taldir, consisting of volumes 1-5, each bearing the title 'Courrier de Basse-Bretagne', containing articles published in Le Nouvelliste de Bretagne (Rennes), 1928-1931, together with volume 6 containing cuttings of a narrative entitled 'Sous le règne du duc Jean VI', published in La Bretagne (Morlaix- Rennes), 28 December 1943-26 January 1944. A few further cuttings and notes, 'Annexes (sous l'occupation Allemande)', 1943-1944, are inserted in vol. 5; four cuttings, 1941-1942, from his column 'Kojou an ti bihan' from Ar Vro Goz (Landerneau) are also included.

Manuscripts and papers of the families of Charles and Edwards, dated between [c. 1600] and 1922; they include letters from Thomas Charles Edwards to his wife, and their son Lewis Charles, 1876-1896; letters to Thomas Charles Edwards, 1885-1899; copies of letters, 1859-1898, including correspondence relating to University College of Wales, Aberystwyth; letters to and from Mary Roberts, 1867-[1893]; letters to their daughter, Elizabeth Alicia Edwards, 1887-1900; Edwards family letters, 1895-1900; and newspapers and press cuttings, [c. 1820]-1922.

A volume containing press-cuttings, consisting of adjudications, notes on old Welsh melodies, poems, etc., by Ceiriog; notes relating to Brinley Richards; accounts of various eisteddfodau, etc. There is one autograph poem entitled 'The train'. There are a few other papers including a telegram, 17 December 1855, asking Ceiriog to compose four lines for a memorial card from [?Roger] Edwards, Mold, a portion of a letter from Ceiriog to 'Alaw' and three autograph verses, [1860x1879].

The first of two volumes (see also NLW MS 4553D) containing press cuttings collected by John Ceiriog Hughes (Ceiriog) which were previously pasted into the volume now NLW MS 4551E.
This volume contains cuttings of contemporary English poetry by various poets, 1846-1853 and undated (ff. 1-67, 70-71), and English articles, book reviews and reports on a variety of subjects, [1850]-1864 and undated (ff. 68-70, 71-92, 94-107). Two cuttings relating to the 1861 census are in Welsh (f. 93).

A large number of press cuttings, 1870-1930 (mainly 1890s), mostly relating to the career of T. E. Ellis, his wedding to Annie J. Davies and his death and its aftermath. Many of the cuttings appear to have been collected by Ellis himself, some of these being supplied by the Romeike & Curtice press cutting agency.

Copies of some twenty-six newspapers, periodicals and other publications, 1887-1899, the majority of which concern the death and funeral of T. E. Ellis in 1899. The publications include Punch, Y Seren, Celt Llundain, The Westminster Gazette and South Wales Daily News.