Abbreviations Used in the Chapel/Church Photographs
The layout of the pages of images do not always allow for the type of religion followed in a chapel, and so shortened forms have been used, where this information is known.
| Codes used for a chapel's religious group. | |
| BC | Bible Christian |
| Calv. Meth /CM | Calvinistic Methodist (Presbyterian) |
| Prim. Meth | Primitive Methodist |
| Wesley | Wesleyan Methodist |
| GRO | Glamorgan Record Office, Cardiff |
| GWENT | Gwent Record Office |
| MTL | Merthyr Tydfil Central Library |
| NLW | National Library of Wales, Aberystwyth |
| PRO | Public Record Office |