Deeds, 1521-1690, relating to the estates of the Parry and Vaughan family of Aberdihonw and Trebarried, Brecknockshire.

The series comprises bills and receipts relating to the expenditure of the Labour Party in the Brecon and Radnor by-election of July 1985 when the successful Liberal candidate was Richard Livsey.

Records relating to Brecon and Radnor Divisional Labour Party, including minute books, financial and miscellaneous registers, correspondence, various papers and the papers of Lord Watkins, 1924-1985.

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.

A volume of certified copies of records housed in the Public Record Office [now The National Archives], London, including transcripts of charter rolls, inquisitions and final concords, mostly relating to Gruffudd ap Gwenwynwyn, Lord of Powys, and his descendants.
The documents were reproduced as an appendix to G. T. O. Bridgeman's article 'The Princes of Upper Powys', in Montgomeryshire Collections, 1 (1868), 104-194.