See John Ball's site Welsh Churches and Chapels Collection for a photograph/data re St Dingat & St Mary'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.
Dingestow Parish; Area (with Grace Dieu Park) 1930 acres; Population 114 males, 101 females, total 215
- St Mary Dingestow Parish Church Attendance - morning 58, afternoon 61 "Very few persons attended Church on the 30 in consequence of it being Midlent or Mothering Sunday on which day there is a custom of visiting relatives" 2 services in English Thomas Morgan, Vicar