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.

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.

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.

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.

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

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

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

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

(With 173B). 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.

(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 scrap-book containing material largely of Caernarvonshire interest (biographical notes, press cuttings, extracts from almanacs, copies of memorial inscriptions, etc.) compiled by John Jones ('Myrddin Fardd'). There is a rough list of contents at the beginning but this is not exhaustive and the pages are not numbered. Inset are two letters, one incomplete, 1920-1, from Ifan ab Owen Edwards, Llanuwchllyn to 'Myrddin Fardd'.

A manuscript by John Jones ('Myrddin Fardd') containing an introductory chapter ('Rhagymadrodd Enwogion') on the worthies of Llŷn and Eifionydd (subsequently amended in turn to Eifionydd and to Caernarvonshire), together with additional notes and press cuttings on the subject. One of the labels on the outer upper cover is numbered '13' and another is inscribed 'Eben Fardd .... ac Enwogion amryw'.

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.

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.

Correspondence of David Thomas, 1907-1929, together with pamphlets, reports and other printed items relating mainly to socialism, the Independent Labour Party, workers' unions, agricultural wages, publication of Y Werin a'i Theyrnas, local committees in North Wales for improvement of social conditions, the Caernarfonshire parliamentary election, 1922, and miscellaneous unspecified subjects; incomplete copies of David Thomas's printed works, articles and parts of his thesis, 1928; account books, [c. 1878]-1910, belonging chiefly to John Williams, Bwlchgwyn, Denbighshire; a small notebook containing literary adjudications in connection with an eisteddfod at Tal-y-sarn, 1908, and translations of six stories from French into Welsh by Morfudd' [Miss H. Jones, Porth] andNehushtan' [N. El. Thomas, Swansea], entered at the Barry National Eisteddfod 1920.

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.

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.

Includes material on the annual meeting of the Labour Party Wales held at Llandudno on 27-28 May 1977 and a copy of a memorandum, dated 26 May 1977, entitled 'Developments in Caernarvonshire since March 1974'.