| Entry Type | Person |
| Surname | Gilbert |
| Forenames | John |
| Epithet | Opened navigation in Speedwell Mine, Castleton, 1770s. |
| Dates | 1724-1795 |
| Authorised Form of Name | Gilbert; John (1724-1795); Opened navigation in Speedwell Mine, Castleton, 1770s. |
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