Cymdeithas Gyfeillgar Glannau Rhyddallt,
- NLW MSS 10718-10719D.
- Ffeil
- 1902-1914.
Account books of Glannau Rhyddallt Friendly Society, containing particulars of monthly contributions from individual members, 1902-1911, together with particulars of benefit payments, 1904-1906, 1914, and balance sheets, 1903-1907.