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 Gwaenysgor were transferred from Flintshire Record Office to Denbighshire Record Office in June 2009.
Gwaenysgor is one of the ancient parishes of Flintshire. Its two townships of Gwaenysgor and Carnychan are both mentioned in the Domesday book. The circular shape of the graveyard surrounding the church, like those around certain other churches in North Wales, suggests that it might possibly have been a Romano-British cemetery.
[Information taken from http://www.genuki.org.uk/big/wal/FLN/Gwaenysgor/index.html (last accessed June 2015)]