MineArchiveChristopher Slingsby Duncombe
Owner of the Helmsley estate, successor to Thomas Duncombe of Helmsley Castle, who let the Bransdale coal at Ankness by the acre and had the workings surveyed yearly by his agent D. Seaton from 1786.
Mines operated
| Mine | Region | Years |
|---|---|---|
| Ankness Colliery | North Yorkshire | ?–? |
| Sled Shoe Colliery | North Yorkshire | ?–? |
| Weather Cote Colliery | North Yorkshire | 1781–? |
Record created: 21 October 2026 · Last researched: 21 October 2026