Miscellaneous papers, 1856-1939, with annotations in the hand of Owain Llewelyn Owain, mostly relating to Caernarvonshire, including a letterbook, 1856, pertaining to Bryn Hafod y Wern slate quarry, Bethesda; a tribute, 1876, to Hugh Owens, Tal-y-sarn, musician, and father of Owain Llewelyn Owain; typescript copies, with manuscript emendations, of two speeches by David Lloyd George, the first delivered at Caernarfon in June 1930, and the second at Bangor, 17 January 1935; and a draft of a speech by Sir Thomas Artemus Jones, chariman of the North Wales Tribunal of Conscientious Objectors, delivered at Caernarfon Town Hall in November 1939.

Papurau Bob Owen yn cynnwys traethodau eisteddfodol, 1910-1941; beirniadaethau ar draethodau eisteddfodol, 1916-1949; crynodebau o bregethau a glywodd, 1895-1927; teipysgrifau rhaglenni radio yr oedd ynghlwm wrthynt, 1936-1957; gohebiaeth, 1908-1961, yn cynnwys llythyrau Dr Thomas Richards, 1923-1960; dyddiaduron, 1905-1961; papurau personol, 1898-1961; papurau teuluol, 1900-1923; copïau a drafftiau o ddarlithoedd, erthyglau a thraethodau, 1906-1950; nodiadau ac adysgrifau helaeth ganddo o farddoniaeth Gymraeg, ewyllysiau a mynegeion ewyllysiau, cartiau achau ac achresi, cofrestri plwyf ac adysgrifau'r esgob, dyddiaduron, llythyrau, almanaciau, cofnodion llys, yn ymwneud yn bennaf â siroedd Caernarfon a Meirionnydd, a chofiannau, [20 gan., ½ cyntaf]; nodiadau ar anghydffurfiaeth yng Ngogledd Cymru, plwyfi siroedd Meirionnydd a Chaernarfon, llongau a morwyr o Gymru a Chymry Llundain, [20 gan., ½ cyntaf]; nodiadau pwysig ar ymfudo o Gymru, yn enwedig i'r Unol Daleithiau, [20 gan., ½ cyntaf]; copïau teipysgrif o gofnodion corfforaethau yn cynnwys Parc Cenedlaethol Eryri a Chyngor Sir Feirionnydd, 1922-1962; cofnodion gwreiddiol a ddaeth i feddiant Bob Owen, yn bennaf cofnodion Chwarel Parc a Chroesor, sir Feirionnydd, yn cynnwys cyfrifon a chofnodion, 1891-1941, a chofnodion ysgolion ac ysgolion Sul, 1861-1957; a thorion ac adysgrifau o amrywiol gyfnodolion Cymreig, 1816-1965. = Papers of Bob Owen including eisteddfod essays, 1910-1941; adjudications of eisteddfod essays, 1916-1949; summaries of sermons heard by him, 1895-1927; typescripts of radio programmes involving him, 1936-1957; correspondence, 1908-1961, including letters from Dr Thomas Richards, 1923-1960; diaries, 1905-1961; personal papers, 1898-1961; family papers, 1900-1923; copies and drafts of lectures, articles and monographs, 1906-1950; extensive notes and transcripts by Bob Owen of Welsh poetry, wills and indexes of wills, pedigrees and genealogies, parish registers and bishops' transcripts, diaries, letters, almanacs, court records, mainly relating to Caernarfonshire and Merionethshire, and biographies, [20 cent, first ½]; notes on nonconformists in North Wales, Merionethshire and Caernarvonshire parishes, Welsh ships and sailors and the London Welsh, [20 cent, first ½]; important notes on emigration from Wales, especially to the United States, [20 cent, first ½]; typescript records of bodies including Snowdonia National Park and Merioneth County Council, 1922-1962; original records acquired by Bob Owen, mainly records of Parc and Croesor Quarry, Merionethshire, including accounts and minutes, 1891-1941, and school and Sunday School records, 1861-1957; and cuttings and transcripts from various Welsh periodicals, 1816-1965.

Papurau ymchwil Elfyn Jenkins, 1950-1955, yn ymwneud â thafodiaith Llŷn, sir Gaernarfon, a fwriadwyd ar gyfer gradd MA, gan gynnwys drafftiau llawysgrif a theipysgrif o'r traethawd anorffenedig = Research papers, 1950-1955, of Elfyn Jenkins relating to the dialect of Llŷn, Caernarfonshire, intended for an MA degree, including manuscript and typescript drafts of the unfinished thesis.

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.

(With 172D). Two volumes of rough transcripts, abstracts, extracts, etc. by J. H. Davies, with one transcript by E. A. Lewis, of original material (14c-19c) mainly relating to Caernarvonshire and partly to Anglesey and Merioneth, extracted mainly from public records. Other sources include manuscripts in the British Museum; Bangor episcopal lease books, surveys and rentals in the possession of the Welsh Church Commission (now in the National Library of Wales); and printed matter.

A volume lettered 'Hanesion Llyn ac Eifionydd', being a collection compiled by John Jones ('Myrddin Fardd') of literary, historical and antiquarian material relating mainly to South Caernarvonshire. The collection is partly in the form of notes and extracts in the compiler's hand and partly of mounted cuttings, 1838-1900 and undated, from Yr Herald Cymraeg, Y Genedl Gymreig, Yr Eifion, Yr Arweinydd, Yr Haul, Yr Ymofynydd, Y Winllan, Y Gwladgarwr, Archaeologia Cambrensis, Dysgedydd y Plant, Trysorfa Y Plant, Y Geiniogwerth, Y Brython ('Cyntaf'), Y Wawr ('Americanaidd'), Columbia, Y Goleuad, North Wales Chronicle, Y Cronicl, Y Protestant, Baner ac Amserau Cymru, Y Drych, Seren Gomer, Papur Pawb, etc. The following is a representative collection of titles: 'Llynau'r Ddwyfor', 'Plwyf Abererch', 'Plwyf Llangybi', 'Plwyf Llanarmon', 'Hen dai yn mhlwyf Llanbedrog', 'Pont Rhyd-y-Croesau', 'Talhenbont', 'Cyfarfod Llenyddol Pwllheli' (1857), 'Llenyddiaeth Lleyn ac Eifionydd', 'Caer Fenlli', 'Ynys Enlli', 'Ysgol Sul gyntaf sir Gaernarfon', 'Taith dros yr Eifl', 'Aberdaron: Trem ar ddechreuad yr achos [Wesleaidd] yn y lle', 'Y Nadolig yn Lleyn', 'Dinlleyn', 'Adgofion boreu oes am Pwllheli a'r gymydogaeth', 'Ymweliad a Galltraeth ...', 'Ffynonau cysegredig Cymru', 'Taith drwy Lleyn ac Eifionydd', 'Tyddyn y Llan, Llangybi', 'Elusendai Llangybi ...', 'Llanystymdwy a'i hynodion', 'Cofiant Dewi Wyn ...', 'Mangofion barddonol', 'Adgofion ieuenctyd [am Dremadog]', 'Cymdeithas Ddarllen Porth Madog, i Forwyr, Crefftwyr, ac eraill', 'Cymdeithas Lenyddol Eifionydd', 'Hanesion Eifionydd (O Draethawd Buddugol Ynys-y-Pandy)', 'Hanes Plwyf Llanystumdwy', etc.

A collection of press cuttings mostly of Caernarvonshire interest compiled by 'Myrddin Fardd', with manuscript notes by him.

Lists of sheriffs of Caernarvonshire, Merioneth and Anglesey; notes of some Caernarvonshire and Anglesey law cases submitted for opinion of several counsel, including John Parry, Caernarvon; a table of fees to be charged by the Clerk of the Peace for the County of Caernarvon as from 1779; copies of bills of costs in the ecclesiastical court of Bangor, 1777; bills of costs of erecting a seat in church by a faculty from the court at Bangor, 1779; etc.

Minutes and administrative papers of the National Executive Committee of the Campaign for the Protection of Rural Wales, 1958, 1972-1982; Caernarfonshire branch records, 1943-1983; local groups' correspondence files, 1952-1980; subject files containing correspondence and reports, 1945-1980, including Snowdonia National Park, 1945-1979; industrial development, 1942-1981; roads and transport, 1947-1980; forestry, 1947-1980; caravans and holiday accommodation, 1941-1979; and miscellaneous photographs of architecture, rural landscapes and eyesores, including litter, derelict buildings, and obtrusive signs and aerials.

Abstracts of some cases of Caernarvonshire interest heard in the Court of Star Chamber, temp. Elizabeth.

A typescript of a pamphlet by Lady Stanley entitled 'Some Early British Churches on the North Coast of Caernarvonshire' (privately printed, 1897).

A collection of press cuttings, mainly relating to Caernarvonshire, compiled by 'Myrddin Fardd'.

An album lettered 'Enwogion Sir Gaernarfon' and labelled 'I' from the library of John Jones ('Myrddin Fardd') containing press cuttings with annotations and some additions by the compiler.

Papers of W. A. Madocks, including his memoranda books, letters to John Williams (his agent at Portmadoc), 1806-1825, and some materials for his biography in the form of copies of letters from Ebenezer Thomas (`Eben Fardd'), John Thomas, Chwilog, Ellis Owen, Cefnymeusydd, and others; a 'statute book' of the 'Ancient and Renowned Borough of Tremadoc', 1805-1810, with an account of the Tremadoc Ball and Hunt; together with records from the Harbour Office, Porthmadog, including account books and registers of Portmadoc harbour, 1824-1917. Also included are records of the Festiniog and Blaenau Railway Co., 1866-1883; plans, sections and other records, 1860-1897, of the Aberystwyth and Welsh Coast Railway, the Bala and Festiniog Railway, the Beddgelert Railway, the Caernarvonshire Railway, the Caernarvonshire and Nantlle Railway, the Cambrian Railway, the Corris, Machynlleth, and River Dovey Tramroad, the Corwen and Bala Extension Railway, the Croesor Railway, the Croesor and Portmadoc Railway, the Festiniog Railway, the London and North Western Railway, the Merionethshire Railway, the Portmadoc, Beddgelert and Rhyd-ddu Railway, and the West Midland, Shrewsbury and Coast of Wales Railway; a register of shareholders and minute books of the Festiniog Refreshment House Company, 1878-1890; a minute book and share ledger of the Penrhyndeudraeth Lead Mining Company, 1875-1882; nominal and muster rolls of the Caernarvonshire Volunteers, 1860-1883, and other Caernarfonshire militia records; a minute book and papers relating to collections in Caernarfonshire towards Queen Victoria's Jubilee, 1886-1887; account books relating to slate quarries and to shipping, and miscellaneous Caernarfonshire material, 1723-[19th century].

Deeds, documents and plans, 1455-1895, relating to properties in Anglesey, Caernarfonshire, Denbighshire, Merionethshire and Montgomeryshire; including papers of the Poole family, owners of the Caenest and Pencraig estates in Merionethshire and Anglesey; surveys, [c. 1770] of the Caenest and Pencraig estates; and building leases for properties in the port of Amlwch, [late 18th century].

A volume, 1906-1907, containing a printed summary of evidence of the Diocese of St Davids to the Welsh Church Commission, and typescript copies of nonconformist statistics for the counties of Anglesey, Caernarfonshire and Carmarthenshire.

Minute books, correspondence and papers, 1953-1992, relating to the Conservative Party in North Wales, including general political papers and circulars, 1971-1989; papers of the North Wales European Election, 1989; news sheets produced by the Brecon and Radnor Conservative Association, 1963-1972; papers relating to the training of constituency agents, 1970-1978; minutes and correspondence of the executive council of the Caernarvon Division of the Conservative and Unionist Association, 1953-1992; papers concerning the Pwllheli Conservative Club, the Association's Annual General Meetings, briefings and reports, 1982-1992; papers including minutes of the executive council and other committees; correspondence, circulars, memoranda, balance sheets of the Conway Constituency Conservative and Unionist Association, 1967-1982; minutes of the Llandudno Junction branch, 1951-1986; records of the Denbigh Constituency Conservative Association, 1974-1982; papers of the National Society of Conservative and Unionist Agents, both the National and Wales and Monmouthshire branches, 1970-1980; and minutes of the North Wales European Constituency Conservative Council, 1978-1989.

A manuscript of John Jones ('Myrddin Fardd') containing lists of names of Caernarfonshire worthies; and miscellaneous press cuttings, e.g. 'Y Parch. Walter H. Jones, MA, BD Gan Glanogwen', 'Cipdrem ar ddynion od yr Alltwen. Lewis Lewis (Lewis Glyndyle). Gan Cyw Cloff, Scranton, Pa.', 'Cantref Buallt', 'Ail-agoriad Eglwys Mair Magdalen, Cerrigydrudion', etc.

The manuscript of a review by Timothy Lewis (1877-1958), Aberystwyth in Zeitschrift für Ortsnamenforchung, 1930, of J. Lloyd-Jones: Enwau Lleoedd Sir Gaernarfon ... (Cardiff, 1928).

An incomplete biographical dictionary of Caernarvonshire worthies ('Enwogion sir Gaernarfon') (209 numbered pages, with numerous gaps) by 'Gwydion ap Don', which was submitted for competition at the National Eisteddfod held at Caernarvon in 1877.