A collection of transcripts, mainly by Robert Vaughan, Hengwrt, of records relating to North Wales, including the extent of North Wales by John de Delves, 26 Edward III; a record of a view of frankpledge for the commote of Menai, 28 Henry VIII; ministers' accounts for Flintshire, 30-31 Henry VIII; extracts from miscellaneous inquisitions, rentals, court rolls, and correspondence; receipts of Lewis Owen, deputy receiver of North Wales, 1 & 2 Philip and Mary; notes of leases under the exchequer seal, 1579; notes on the form of administration of justice in Wales by Auditor Hill; 'The State of the Dominion of Wales' by Sir Thomas Canon; accounts of John Lloyd of Ragad, escheator of Merioneth; instructions to the Earl of Bridgewater, President of the Council in Wales and the Marches, 1633; a roll of the coroner for Merioneth, 10-11 Edward III; estreats of fines in North Wales, 22-30 Edward III; lists of persons indicted in Merioneth, 6- 19 Richard II; records of pleas before the justice of North Wales, 4 Edward II; a list of recognisances in the exchequer at Caernarvon, 18 Edward II; lists of persons in Anglesey fined for being in arms with Owen Glyndyfrdwy, with lists of outlaws and jurors; and a breviate of an account between Sir John Salesbury, chamberlain of North Wales, and Lewis Owen, his deputy, 1555.

Transcripts relating to Flintshire from William Camden (trans. Edmund Gibson): Britannia, 1772, Vol. II; together with an incomplete table (abbas-calumpniatorum) of Latin abbreviations.

An address on 'Chester in its relation to Flintshire'; and a few notes from printed sources on the Justices of Chester.

Notes of Flintshire interest, comprising extracts from public records and from Harleian manuscripts (e.g. arms from MS 1143), and lists of original sources to be examined.

A large group of cuttings, 1907-18, from Prestatyn Weekly, The Rhyl Journal, The Flintshire Observer, The Chester Observer, The Chester Chronicle, etc., relating to a variety of subjects of Flintshire interest, such as the antiquities of Holywell, St. Asaph, Rhuddlan, Newmarket, Gwaenysgor and Llanasa, excursions of the Dyserth Field Club, strikes at Talar Goch, etc., etc.

Letters, 1763-1837, most of them addressed to David Pennant, and mainly dealing with local affairs (Board of Guardians, Flint Enclosure Bill, etc.).

Papers connected mainly with the activities of David Pennant of Downing, Flintshire, son of Thomas Pennant. They include material relating to affairs in Flintshire and north-east Wales in general and the Holywell district in particular and consist of letters from Henry Chambers, Edward Jones (David Pennants secretary or agent), F. R. Price (Bryn-y-pys), C. Oldfield (Perthyterfyn), Henry Parry (vicar of Llanasa), J. Oldfield, David Edisbury, D. Scott, etc.; drafts and memoranda by David Pennant; papers relating to The Charity for the Relief of the Poor Widows and Orphans of Clergymen who officiated in the diocese of St. Asaph, Flintshire and Denbighshire parliamentary elections and political affairs, parliamentary reform, poor-law relief, soup kitchens, canals, collieries and colliery strikes, public celebrations, the Holywell Loyal Volunteers, church schools, clothing clubs, eisteddfodau, auction sales, the Flintshire Dispensary, the Holywell Annual Vestry, the Holywell Hunt, etc.; a Latin poem; etc.

Extracts of Flintshire interest from NLW MSS 1557 and 1593, from printed sources and from parish registers and other records of Dyserth, Gwaunysgor, Llansannan, Meliden, etc.

Press cuttings, mainly relating to Flintshire and with ecclesiastical matters.

Miscellaneous collectanea, including notes on Denbighshire and Flintshire churches, parishes, etc.

Newspaper cuttings, mainly relating to Flintshire and to ecclesiastical history.

Deeds purchased from W. A. Evans, relating to Denbighshire, Flintshire and Anglesey, 1310-1795.

Deeds, 1507-[1839], mainly relating to Flintshire, and to a lesser extent to Denbighshire and Anglesey.

Addresses, 1919, by Meredith J. Hughes on Flintshire worthies ('Rhai o enwogion Sir Fflint') and on 'The alleged voyages of Madoc son of Owen Gwynedd, Prince of North Wales, in the XIIth cent.'.

Papurau Robert Roberts,1934-1954, gan gynnwys llythyrau, nodiadau, llyfrau lloffion a defnyddiau pellach yn ymwneud â'i waith ar hanes a llenyddiaeth Gogledd Cymru, ac ar Absalom Fardd. = Papers of Robert Roberts, 1934-1954, comprising letters, notes, scrapbooks and other material relating to his work on the history and literature of North Wales, and to Absalom Fardd.

Papurau ymchwil yn ymwneud â'i draethawd MTh 'Bywyd a Gwaith William Williams o'r Wern 1781-1840' (Bangor, 1981) a'i draethawd MPhil 'Astudiaeth hanesyddol o Annibynwyr Siroedd Dinbych a Fflint 1863-1953 (Bangor, 1993),[1981]-1993 = Research papers relating to his MTh thesis 'Bywyd a Gwaith William Williams o'r Wern 1781-1840' (Bangor, 1981) and his MPhil thesis 'Astudiaeth Hanesyddol o Annibynwyr Siroedd Dinbych a Fflint 1863-1953' (Bangor, 1993), [1981]-1993.

Printed lists of the St Asaph parish records held by the Flintshire Record Office, comprising Bettisfield, Bodelwyddan, Bronington, Brynford, Gorsedd, Nercwys, Overton, Treuddyn and Ysceifiog.

Legal precedents and transcripts of official letters and orders, largely of Denbighshire and Flintshire interest; a calendar; proportions of mise payable by the different townships of Isdulas, Denbighshire; etc.

Papers, 1743-1994, of or relating to Margaret Mostyn Jones of Wern House, Mostyn, Flintshire, and to members of her family, and including a journal, 1861-1864, kept by her while employed by Augusta Hall, Lady Llanover; correspondence, 1876-1932, to and from Margaret Mostyn Jones, including letters, 1890-1894, written to members of her family while living in Ohio; an autobiographical essay, 1929-1932, by Margaret Mostyn Jones; together with papers, 1743-1874, mainly of Flintshire interest.

Letters addressed to Huw T. Edwards, 1929-1970, and carbon copies of letters sent by him, 1945-1969, concerning politics, literature, and the Council for Wales and Monmouthshire, including letters to and from political figures in the Labour Party and Plaid Cymru, and Welsh literary figures; pocket diaries, 1929-1968; minute books of the North Wales Labour Federation, 1923-1930; reports and memoranda concerning the activities of the Council for Wales and Monmouthshire, political life in North Wales, and the activities of TWW, 1935-1966; press cuttings relating to Edwards' political career and the activities of the Council for Wales and Monmouthshire, 1930-1968; illuminated addresses and distinctions presented to him, 1933-1969; miscellaneous printed items, 1912-1967; poems by him, 1950-1958; and other personal papers, 1926-1967; and acquired papers, notably letters from Sir Owen M. Edwards to Hughes and Son, Wrexham, printers, 1894-1895.