See John Ball's site Welsh Churches and Chapels Collection for a photograph/data re St Tegfedd's Church
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.
Llandegveth Parish; Statistics; Area 789 acres; Population 64 males, 50 females, total 114
- Llandegveth Parish Church Attendance - morning 40 + 10 scholars 1 service in English P A Williams, Rector, Caerleon