The National Library of Wales. (NLW) 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.
Hugh Owen Library, Penglais Campus, Aberystwyth, SY23 3DZ. 01970 622399
This is the main library of the University of Wales, Aberystwyth- includes a Celtic Collection.
Ceredigion Archives. Aberystwyth. E-mail Ceredigion Archives . Full details of their holdings on their site.
Ceredigion Public Library, Corporation Street, Aberystwyth, SY23 2BU. 01970 633703 Fax 01970 625059
The Reference Library on the first floor of Aberystwyth Public Library houses a wide range of books, journals and local newspapers on the county of Ceredigion.
The Royal Commission on the Ancient & Historical Monuments of Wales (RCAHMW), Plas Crug, Aberystwyth, SY23 1NJ 01970 621200 Fax 01970 627701
This is the library of the government organization responsible for surveying and recording the archaeological and built heritage of Wales. It also curates the National Monuments Record for Wales (NMRW) which holds the national collection of information about the historical environment. Coflein combines information about the NMRW archive collections.
The National Archives (TNA) has details of many archive repositories in the UK with links to their web sites, if any.