Powys Archives (link is external) Provide a series of Local Studies Notes with Sources for Family History and a Guide to Holdings
The National Library of Wales (link is external). Aberystwyth. The major repository of information relevant to Welsh genealogy, such as Bishop's Transcripts of Parish Registers, Marriage Bonds and Allegations, Nonconformist Records, Probate Records, Tithe Maps and Apportionment Schedules, Legal and Administrative Records, Estate Records and Personal Papers, Pedigree Books, Newspapers, etc.
Brecon Area Library (link is external) Ship Street Brecon Powys LD3 9AE Telephone: +44 (0) 1874 623346 E-mail: firstname.lastname@example.org (link sends e-mail) Opening hours: Mon 9:30-17:00; Tue 09:30-19:00; Wed to Fri 9:30-17:00; Sat 09:30-13:00 The library holds copies of Breconshire Census Returns 1841 to 1901.
Powys Museums and Galleries (link is external)
The National Archives has details of many archive repositories (link is external) in the UK with links to their websites.
Search the on-line catalogue of the London Family History Centre (link is external) (formerly the Hyde Park Family History Centre). The London FHC is one of more than 4,800 Family History Centres of the Church of Jesus Christ of Latter-day Saints. It is the largest such centre outside of North America, and one of more than 100 centres in the British Isles. It holds a good collection of finding aids and a significant collection of primary records, mostly on microfilm. Records are chiefly drawn from the Family History Library in Salt Lake City, Utah, USA.
The Royal Commission on the Ancient and Historical Monuments of Wales (link is external) (RCAHMW) In addition to the RCAHMW's on-line Archive Catalogue there is also a Chapels database which will eventually list all known nonconformist chapels in Wales.