Christchurch is an "ecclesiastical parish formed from extra-parochial area of the Forest of Dean, 1844." Coleford was a "chapelry of Newland until 1872, united with Staunton since 1922." (Ref: Guide to the Parish Records of the City of Bristol and the County of Gloucester; I. Gray & E. Ralph, 1963)
"In County and Diocese of Glos. A small portion [of Coleford] was previously within Herefordshire, near Welsh Bicknor" (Ref: The Parish Registers of Herefordshire, J Harnden, 1987, ISBN 0 9512347 0 6).
You can see the administrative areas in which Coleford has been placed at times in the past.
Select one to see a link to a map of that particular area.