Church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 11, North Wales. Ed. by Ieuan Gwynedd Jones, UWP, 1981. The names given towards the end of each entry are those of the informants.
Area 2650 acres; Population 136 males, 120 females, total 256
- Bettws Gwirfil Goch Attendance - usual - morning 70, afternoon 40 + 30 scholars Services in Welsh with monthly in English Informant; W Hughes, Rector of Bettws
The church was in Merionethshire until 1974, then Clwyd until 1996 when it became part of Denbighshire.
Clwyd FHS site - photograph of St Mary Church
Denbighshire Churches Survey - Church of St Mary, Betws Gwerfil Goch
Rees, Thomas & John Thomas Hanes Eglwysi Annibynnol Cymru (History of the Welsh Independent Churches), 4 volumes (published 1871+). The Bettws-Gwerfil-Goch section (in Welsh) has been extracted - with translation by Maureen Saycell (Feb 2011)