In 1870-72, John Marius Wilson's Imperial Gazetteer of England and Wales described Caerwys like this:
CAERWYS, a small town and a parish in Holywell district, Flint. The town stands 5 miles SW by W of Holywell r. station, and 6 E of St. Asaph; and has a post office under Holywell. It is thought to occupy the site of a Roman station; it was the scene of the court of the last Prince Llewellyn; it witnessed Eisteddfodau, or congresses of bards and minstrels, at various periods till 1798; it was the seat of the county assizes till 1672; and it unites with Flint, and other places, in sending a member to parliament; but, as a borough, includes the townships of Tre'dre and Tref-Edwyn. ...
It comprises four streets, crossing each other in the centre; and has a townhall, a church, and three dissenting chapels. Markets are held on Tuesdays; and fairs on the 2d Tuesday of Jan., 5 March, the last Tuesday of April, Trinity Thursday, the Tuesday after 7 July, 29 Aug., and 5 Nov. Pop., 637. Houses, 150.The parish includes also the townships of Bryngwyn-Issa, and Bryngwyn-Ucha. Acres, 2,603. Real property, £2,952. Pop., 853. Houses, 208. The manor belongs to Lord Mostyn. Maes-Mynam, the site of the residence of Prince Llewellyn, is SW of the town. A tumulus is about a mile NE of the town; other tumuli are on the hills to the W; and an ancient camp is on a summit to the N. The living is a rectory in the diocese of St. Asaph. Value, £425.* Patron, the Bishop of St. Asaph. Lloyd, the friend of Pennant, was vicar; and Bishop Wynne was a native.
A Vision of Britain through Time includes a large library of local statistics for administrative units. For the best overall sense of how the area containing Caerwys has changed, please see our redistricted information for the modern district of Flintshire. More detailed statistical data are available under Units and statistics, which includes both administrative units covering Caerwys and units named after it.
GB Historical GIS / University of Portsmouth, History of Caerwys in Flintshire | Map and description, A Vision of Britain through Time.
Date accessed: 30th September 2016
Click here for more detailed advice on finding places within A Vision of Britain through Time, and maybe some references to other places called "Caerwys".