David Lloyd Jones
Owner of Llwyngwern quarry, near Machynlleth, in the 1880s, who specialised in supplying slate slab for enamelling, both to a London merchant and through a joint venture with the Towyn Enamelled Slate Quarry Company. He sold the quarry in 1891.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Llwyngwern Quarry | Powys | 1878–1891 |
Record created: 9 September 2026 · Last researched: 9 September 2026