Y Gymdeithas Feiblaidd Frytanaidd a Thramor
- NLW MS 1006B
- Ffeil
- 1814-1858
Rhan oEllis Owen Manuscripts
Papers, 1814-1858, relating to the Llŷn and Eifionydd and the Tremadog Auxiliaries of the British and Foreign Bible Society; names of members and other particulars relating to 'Cymdeithas Eifionydd er cospi ... Drwgweithredwyr', 1829; names of incumbents of churches in the deanery of Eifionydd, 1389-1827; etc.