- NLW MS 3620B.
- Ffeil
- 1912-1913.
Rhan oLleufer Thomas MSS,
Pay sheets showing the output and rates of pay of miners at Llanbradach collieries, 1912, Meiros colliery, 1912, and Pentre and Church collieries, 1913.
Rhan oLleufer Thomas MSS,
Pay sheets showing the output and rates of pay of miners at Llanbradach collieries, 1912, Meiros colliery, 1912, and Pentre and Church collieries, 1913.