| Alt Ref No | BMSS/40456-40532 |
| Acc No | 2000/36 |
| 2001/39 |
| 2007/11 |
| 2001/42 |
| 2003/14 |
| Title | Cofnodion Capel Twrgwyn, Bangor Uchaf |
| Date | 1885-2003 |
| Related Material | For other Twrgwyn Records see General Collection of Bangor Manuscripts 215, 1940 - 1974, 5282 - 5289, 5541, 7371, 8241 - 8242, 11516, 13535, 32831, 32887, 38796 - 38823, 38954 - 38963 |