A bibliography compiled by T[homas] Hevin Williams in 1931 for a study of Merioneth place-names.

A microfilm copy of part of PRO MS LR2/236 containing a survey of Merioneth, 1592.

Copies of the Queen's instructions to Henry, Earl of Pembroke, Lord President of the Council in Wales and the Marches, 1586; the commission of the lieutenancy of Wales and the Marches to Henry, Earl of Pembroke, March 22, 1600, with power to make deputations to persons named in the commission for the different counties within the lieutenancy; a petition by six members of the Privy Council to the Lord Keeper to renew the commission of lieutenancy for Merioneth and to leave out the names of John Lewys Owen and Cadwalader ap Ris, who had been arraigned before the Court of Star Chamber for misdemeanours, and to appoint Griffith Vaughan and Robert Lloyd to be deputies for the Earl of Pembroke for that county; a Privy Council letter to the same effect covering a renewed commission to the Earl of Pembroke, March 31, 1600, with a list of justices of the peace for Merioneth; and orders for the reformation of the Court of the Marches, 1577.

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.

The series comprises small notebooks which Condry carried with him, recording descriptions of places visited, observations on wildlife, particularly birds and plants, geology, industry, historical landmarks, archaeology, personal reminders, ideas for writing and lecturing, photography, bibliographies, useful contacts and conservation issues, 1952-1994. The main geographical areas covered are Bardsey Island, Cader Idris, Cardiganshire and Merionethshire. An index to the series is provided., compiled by Ceridwen Lloyd-Morgan, 2013.

Professional papers of Ywain Goronwy ap Griffith comprising agreements, specifications, plans and correspondence, 1927-53, mainly relating to the alteration, repair and erection of new buildings, both private and public, in Merionethshire, Montgomeryshire and Caernarfonshire; files relating to work done in the diocese of Bangor, mainly in the form of alterations and repairs to vicarages, 1932-1952; and papers, 1920-40, relating to the redemption of tithe rent-charges in various parishes of Anglesey, Caernarfonshire, Cardiganshire and Merionethshire.

Gohebiaeth, barddoniaeth, rhyddiaith a phapurau teuluol, yn ymwneud â J. W. Jones, 1878-1954, a'i dad, 'Glan Barlwyd', 1866-1917; deunydd a gasglwyd gan J. W. Jones yn ymnweud ag unigolion a sefydliadau yn ardal Blaenau Ffestiniog, gan gynnwys gohebiaeth, barddoniaeth a phapurau eraill o eiddo 'Gwilym Deudraeth', 1917-1939, 'Elfyn', 1874-1917, Y Parch. R. R. Morris, 1883-1933, 'Alafon', 1875-1915, 'Llifon', 1899-1916, 'Isallt', 1887-1913, a 'Glyn Myfyr', 1893-1937; llythyrau at John Daniel Davies yn rhinwedd ei swydd fel golygydd Y Rhedegydd, 1930-1942; barddoniaeth a phapurau eraill o eiddo T. Gwynn Jones, 1910-1944; barddoniaeth, [1840]-1940, gan amryw feirdd, yn cynnwys Hedd Wyn ac R. Williams Parry; deunydd rhyddiaith amrywiol, peth ohono wedi'i gyhoeddi yn Y Drysorfa ac yn Y Rhedegydd, 1879-1954; llawysgrifau cerddorol, 1876-[c. 1934]; beirniadaethau eisteddfodol, 1870-1939; llyfrau lloffion yn cynnwys torion o'r wasg, [c. 1879]-1940; dyddiaduron, 1864-1935; cofnodion chwareli llechi Blaenau Ffestiniog, 1868-1951; amryw gyfrifon a llyfrau cyfrifon yn ymwneud â gwahanol fusnesau a sefydliadau, 1784-1932; cofnodion yn ymwneud ag eglwysi'r Methodistiaid Calfinaidd, 1840-1951, gan gynnwys rhai Bethel, Tanygrisiau, [1840x1945]; pregethau a nodiadau crefyddol,1846-1952; deunydd printiedig yn cynnwys effemera etholiadol, marwnadau, baledi, carolau ac emynau, 1820-1948; a gweithredoedd a dogfennau yn ymwneud â siroedd Caernarfon, Meirionnydd a Dinbych, 1759-1947. = Correspondence, poetry, prose and family papers, relating to J. W. Jones, 1878-1954, and to his father, 'Glan Barlwyd', 1866-1917; material collected by J. W. Jones relating to individuals and organizations in the Blaenau Ffestiniog area, including correspondence, poetry and other papers of 'Gwilym Deudraeth', 1917-1939, 'Elfyn', 1874-1917, Rev. R. R. Morris, 1883-1933, 'Alafon', 1875-1915, 'Llifon', 1899-1916, 'Isallt', 1887-1913, and 'Glyn Myfyr', 1893-1937; letters to John Daniel Davies as editor of Y Rhedegydd, 1930-1942; poetry and other papers of T. Gwynn Jones, 1910-1944; poetry, [1840]-1940, by various poets, including Hedd Wyn and R. Williams Parry; various prose material, some of which was published in Y Drysorfa and Y Rhedegydd, 1879-1954; musical manuscripts, 1876-[c. 1934]; eisteddfod adjudications, 1870-1939; scrapbooks containing press cuttings, [c. 1879]-1940; diaries, 1864-1935; records of Blaenau Ffestiniog slate quarries, 1868-1951; various accounts and account books relating to various trades and organisations, 1784-1932; records relating to Calvinistic Methodist churches, 1840-1951, including those of Bethel, Tanygrisiau, [1840x1945]; sermons and religious notes, 1846-1952; printed material including electoral ephemera, elegies, ballads, carols and hymns, 1820-1948; and deeds and documents relating to Caernarfonshire, Merionethshire and Denbighshire, 1759-1947.

Papers relating to families and estates in north Wales, including the West family, the Chirk Castle estate, the Hengwrt, Rug and Nannau estate, the Wynnstay estate, the Penbedw estate, the estate of Richard Willding of Llanrhaeadr Hall, Denbighshire, and the Whitehall-Davies family of Broughton Hall, Flintshire, and Llannerch, Denbighshire. Records and correspondence, including relating to abstracts of title, chapels, churches, conveyances, inclosures, industrial activity, law suits, mining, parliamentary elections, probate, railways, schools and tithe commutation. Office records, including cash journals, bill books and letter books, [19th century]-[20th century].

A volume, 1906, containing completed financial returns, issued by the Welsh Church Commission, and balance sheets of parishes in the Diocese of Bangor, relating specifically to the Archdeaconry of Merioneth.

A volume, 1906, containing lists of communicants in the Diocese of Bangor, relating specifically to Montgomeryshire and Merionethshire.

Papers relating to the administration of the Plas Power estate and household, including some properties belonging to the Chirk estate, some but not all of which became part of the Plas Power estate; also included are some records from other properties in England that were owned by the Myddelton family.

Papers of Henry Robertson, comprising personal and estate papers, 1829-1907; records of a very large number of Welsh railway undertakings, 1786-1911, comprising books of reference, surveryors' notebooks, acts of parlimaent, bills and estimates, conveyances and other title deeds, specifications and tenders, prospectuses and miscellaneous papers; office papers, correspondence and miscellaneous professional papers, 1824-1903; papers relating to several clubs and societies, 1888-1907; and printed books and papers, 1786-[c.late 19th cent.].

Traethawd 'Golwg ar hanes ardal Llawrybetws neu Nantffreuer: o Bethel i lawr i Gaefaes' a ysgrifennodd D. Tecwyn Lloyd ar hanes lleol bro ei febyd, 'o gof personol ac amryfal gofnodion', gan ganolbwyntio ar anheddau'r ardal.

Ledger and journal of Gaewern Slate works, Machynlleth, 1835-1856; accounts and notebooks of the Ratgoed and Cymerau Slate Quarries, Tal-y-llyn, and Llwyngwern Slate Quarry, Llanuwchllyn, 1853-1899; ledgers and notebook of the Cambrian Slate Works, Machynlleth, 1899-1909; minute books of the Abercorris Slate Quarry Company, Rhiwgwreiddyn, Corris, 1893-1909, and the Towyn Company, Tywyn, 1893-1903; and miscellaneous accounts and ledgers, 1827-1909.

Deeds, 1490-1977, including deeds and documents mainly relating to properties on Anglesey, Caernarfonshire, Merionethshire and Middlesex, 1675-1977; and deeds relating to properties in Finchley, Middlesex, 1490-1796.

Deeds, documents and probate records, 1617-1853, relating mainly to the parishes of Caerhun, Conwy, Dwygyfylchi, Gyffin, Llanbedrycennin and Llannor, Caernarfonshire, and to the Abbey estate, in Denbighshire, Merionethshire and Caernarfonshire, 1811-1819; notes on sermons, 1861-1889; and miscellaneous papers relating to Amlwch, Anglesey, 1801-1868.

Papers, 1679-1983, of and accumulated by H. Noel Jerman, comprising: research papers, 1914-1975; files relating to his work in the Secret Intelligence services, 1941-1945; correspondence, notes and other papers relating mainly to archaeology, and also to his professional activities, 1948-1983; 'Notes and Memoranda' relating to events organised by the Cambrian Archaeological Association, 1883-1894; original records collected by him, 1679-1926, including deeds and documents relating to properties in Kerry, Montgomeryshire, 1679-1885, and Kerry School, 1843-1873, and copies of local newspapers, 1834-1868; records relating to the Dolforgan estate, including deeds and documents relating to properties in Montgomeryshire, Carmarthenshire and Merionethshire, 1807-1910, financial records, 1889-1939, and letter books, 1892-1930.

An additional consignment of materials of, and accumulated by, the late H. Noel Jerman (1909-1994), including his research papers relating to properties in Kerry and surrounding areas, papers relating to the Dolforgan estate, together with maps, sale catalogues, plans and photographs, and a lithograph of Dolforgan Hall by T. Way. This group remains uncatalogued.

Development Board for Rural Wales records, containing minutes and other papers of the Board and various committees, 1977-1994; general administrative files concerning the establishment of the Board, its functions and responsibilities, and correspondence with other organizations, 1966-1990; construction files containing correspondence, contracts and estate plans relating to housing and industrial developments executed by the Board, particularly in Newtown, 1968-1993; records such as correspondence, minutes, notes and other papers relating to research studies on economic and social life in Mid-Wales carried out by the Board, 1968-1995; files relating to the Board's marketing and promotional strategy, 1978-1991; and press releases, 1977-1990; Mid-Wales Development Corporation records, 1962-1979, including annual reports, 1969-1977, minutes and papers of the Board and various committees, 1968-1979, and seal registers relating to MWDC projects, 1968-1976, containing compulsory purchase orders, contracts, leases and other documents.

An additional three files relating to the Development Board for Rural Wales, being DB/CF/101/1; DB/CF/101/2; DB/CF/101/3 – (Extension to Goodall & Swanwick factories at Dolgellau; factories at Dolgellau; and extension to Marian Park Industrial Estate, Dolgellau). These remain uncatalogued, and are closed for ten years from the date of the latest document in each file.