"CWMCARVEN, (or Cwmcarvan), a parish in the upper division of the hundred of Ragland, in the county of Monmouth, 3½ miles S.W. of Monmouth. It is situated on a branch of the river Trothy. The living is a curacy in the diocese of Llandaff, value with the rectory* of Mitchel Troy, £398, in the patronage of the Duke of Beaufort. The parochial charities amount to £8 per annum, derived from the rents of the church lands." [Description(s) from The National Gazetteer of Great Britain and Ireland (1868)
Church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 1, South Wales. Ed. by I.G Jones, & D. Williams. UWP, Cardiff, 1976. The names given towards the end of each entry are those of the informants. Check with Gwent RO to see what extant records are held, and possible names of chapels/churches established after 1851.
Cwmcarvan Parish ; Statistics; Area 2875 acres; Population 173 males, 161 females, total 334
Cwmcarvan Parish Church - Attendance - afternoon 67+5 scholars 1 service in English Henry George Talbot, Rector
Cwmcarvan Hill, Wesleyan Methodist - Dwelling house erected before 1800 Attendance - morning 25, afternoon 40 "Divine service in part of the house for more than 50 years" William Edwards, Steward
Bible Christians, Chapel House - Erected 1842 Attendance - morning 12 "Not a separate entire building. Not used exclusively as a place of worship" John Howells, Steward, Cwmcarvan Hill
Family Search have an interactive map called "England and Wales Jurisdictions 1851" showing parish (and other) boundaries with optional background maps such as Ordnance Survey. There is also a Search facility, do read the guidance notes to get maximum benefit from this useful resource. See here for further background information to assist in the interpretation of this data
Kain, R.J.P., Oliver, R.R., Historic Parishes of England and Wales: an Electronic Map of Boundaries before 1850 with a Gazetteer and Metadata [computer file]. Colchester, Essex: History Data Service, UK Data Archive [distributor], 17 May 2001. SN: 4348. Here is a gazetteer/finding aid plus a set of overview maps to accurately identify the position of parishes within the county.
You can see maps centred on OS grid reference SO477074 (Lat/Lon: 51.762827, -2.759216), Cwmcarfan / Cwmcarvan which are provided by: