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.
Until the early nineteenth century, the parish of Gresford was of very great extent, as it included the chapelries of Holt and Isycoed, and the detached township of Erddig.
On 30 June 1840, the townships of Allington, Burton, Marford and Hoseley became the new parish of Rossett.
In November 1851, the township of Gwersyllt went to the new parish of Gwersyllt.
Between the years 1908 - 1913, the parish of Gresford consisted of the townships of Gresford, Llay, Borras Riffri, Borras Hofa, and portions of Burton, Allington and Marford & Hoseley.
[Information taken from http://www.genuki.org.uk/big/wal/DEN/Gresford/index.html (last accessed June 2015)]