- P4/2/1.
- Ffeil
- 1894-1896.
Rhan oMonmouthshire and South Wales Coal Owners Association Records,
Letters and papers relating to disputes at Ferndale; Ffaldau Colliery, Pontycymmer; Cwmaman; Pontypool; Merthyr Vale; East Elliot Pit, New Tredegar; Morfa Colliery, Taibach.