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.
The ancient parish of Nantglyn comprised the four townships of Blaenau, Cwmllwm, Hendre, and Plas. St James' Church in Nantglyn was was partly rebuilt in 1777, and was almost entirely rebuilt in 1862.
Information taken fron GENUKI- http://www.genuki.org.uk/big/wal/DEN/Nantglyn/index.html (last accessed 08/01/2015)