Records of Davies Brothers, 1800-1896, and of the Cardigan branch of Swansea Old Brewery & Davies' (Cardigan) Bonded Stores Ltd., 1896-1921, including ledgers, 1872-1908, day books, 1872-1918, press letter books, 1878-1919, cash books, 1879-1912, bills, 1893-1913, order books, 1898-1921, receipts, 1904-1910, records relating to orders, 1904-1920, and letters from the company's Swansea and Pembroke branches, 1905-1920, together with a group of additional papers, [19 cent., last ¼]-[1930s], 1980. Papers of John Davies, solicitor, 1804-1883, including electoral registers for the Cardigan boroughs, 1834-1839, and papers relating to the business affairs of Daniel Davies of The Bonded Stores, Cardigan, 1878-1882.

Deeds relating to Cardigan, and St Dogmaels, Pembrokeshire, 1537-1804, predominantly of the property of the Weilshe family, 1563-1676, and the Davies family, 1676-1804; and deeds relating to Swansea, Glamorgan, 1821-1895.

Papers, 1871-1884, of D[avid] Griffith Davies, Castle Green, mainly relating to the Cardigan and River Tivy Improvement Scheme; official reports on the alleged pollution of the river Tivy by lead mines, etc.; an official letter written from Whitehall by Henry Fitzroy on behalf of Viscount Palmerston, 1853, relating to the withdrawal of troops stationed at Cardigan.

Llyfrau cofnodion y Pwyllgor Gwaith a'r Cyfarfodydd Cyffredinol Blynyddol, 1952-1984; amrywiol lyfrau nodiadau a chofrestri yn ymwneud â phwyllgorau a chystadleuwyr yr eisteddfod, 1955-1990; llythyrau a dderbyniwyd gan O.M.Owen, yn bennaf oddi wrth Syr David James ynglŷn ag Ymddiriedolaeth Pantyfedwen, 1958-1990; copïau carbon o lythyrau a anfonwyd ganddo,1955-1990; torion o'r wasg, 1954-1988; deunydd printiedig yn cynnwys rhestri cystadlaethau, rhaglenni'r eisteddfod a Pigion Eisteddfod Aberteifi, 1953-1990; lluniau,1905-1976; a phosteri, 1953-1990 = Minute books of the Executive Committee and Annual General Meetings, 1952-1984; various notebooks and registers relating to committees and to eisteddfod competitors, 1955-1990; letters received by O. M. Owen, mainly from Sir David James concerning the Pantyfedwen Trust, 1958-1990; carbon copies of letters sent by him, 1955-1990; press cuttings, 1954-1988; printed material including competition lists, eisteddfod programmes and Pigion Eisteddfod Aberteifi, 1953-1990; photographs, 1905-1976; and posters, 1953-1990.