The records of individual ecclesiastical parishes include registers of baptisms, marriages and burials, as well as records of the churchwardens and Parochial Church Councils, parish charities, schools, clubs and societies.
Parish records were deposited at the Clwyd Record Office, following an agreement of 1976 between the Church in Wales and the Welsh County Councils. Following a decision by the Church in Wales to group parish collections by deanery, the records of Caerwys were transferred from Flintshire Record Office to Denbighshire Record Office in June 2009.
Caerwys is one of the "ancient parishes" of Flintshire. It comprises the townships of Tref Edwyn, Tre-dre, Bryngwyn Ucha and Bryngwyn Isa. The town of Caerwys was at one time a place of considerable importance. [Information taken from http://www.genuki.org.uk/big/wal/FLN/Caerwys/index.html (last accessed June 2015)]