MineArchiveJohn Whitehead Greaves
Began commercial slate production at Bowydd quarry in 1833, before going on to found the neighbouring Llechwedd quarry in 1846.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Votty and Bowydd Quarry | Gwynedd | 1833–? |
Record created: 24 August 2026 · Last researched: 24 August 2026