Thomas and Owens
Trading name of Raymond Llewellyn Owens and William Edgar Glyndwr Thomas, owners of Ystrad Colliery, Glanamman, from about 1973 into the 1980s, including at the time of the 1978 explosion.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Glynmoch Colliery | Carmarthenshire | 1973–1988 |
Record created: 16 September 2026 · Last researched: 16 September 2026