Aberysywth. A seaport, watering-place and municipal borough on Cardigan Bay, in the county of Cardigan, Wales, situated at the confluence of the Ystwith and Rheidol, 244 miles NW of London on the Cambrian Railway. Some amount of trade is carried on, the exports being lead, flannel and iron. The University College of Wales is established here. In the summer, many visitors are attracted by the climate, and the picturesque surroundings, among which the Devil's Bridge is not the least interesting. The ruins of a castle of Edward I crown a promontory to the SW. Until 1885 Aberystwyth was one of the Cardigan parliamentary boroughs. Pop (1901) 8,013.From Cassell's Encyclopedia; a Storehouse of General Information (undated, but apparently early 1900s)
The local record office is Ceredigion Archives/Archifdy Ceredigion but Aberystwyth is better known as the home of the National Library of Wales/Llyfrgell Genedlaethol Cymru. There is more information about Aberystwyth at Vision of Britain and you will find The New Aberystwyth Guide by T J Llewelyn Prichard 1824 on Google Books.