Elmore family
William Elmore and his sons Francis and Alexander Stanley bought Glasdir in 1896 and installed the world's first industrial-scale oil-flotation plant there in 1897.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Glasdir Mine | Gwynedd | 1896–1915 |
Record created: 24 August 2026 · Last researched: 24 August 2026