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British Gypsum Ltd.
Warning: This is not intended to be an exhaustive history of the company, but an indication of the changes of ownership and the links between companies and directors in those companies. The company may own other properties etc. and there may have been other changes of ownership etc. for which we currently do not have details.
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| 1979 | |
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Collieries/Mines Owned
| Employees | |||||
| Name of Mine | Locality | Manager | Under | Above | |
| ground | ground | ||||
| Birks Head | Kirkby Thore | — | — | ||
| Long Meg | Langwathby | — | — | ||
| Longriggs | Kirkby Thore | — | — | ||
| Newbiggin Mine | Newbiggin, Temple Sowerby, Penrith | — | — | ||
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| 1983 | |
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Collieries/Mines Owned
| Employees | |||||
| Name of Mine | Locality | Manager | Under | Above | |
| ground | ground | ||||
| Birks Head | Kirkby Thore | — | — | ||
| Long Meg | Langwathby | — | — | ||
| Longriggs | Kirkby Thore | — | — | ||
| Newbiggin Mine | Newbiggin, Temple Sowerby, Penrith | — | — | ||
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| 1984 | |
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Collieries/Mines Owned
| Employees | |||||
| Name of Mine | Locality | Manager | Under | Above | |
| ground | ground | ||||
| Birks Head | Appleby | — | — | ||
| Longriggs Mine | Appleby | — | — | ||
| Newbiggin Mine | Appleby | — | — | ||
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| Sources | |
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- 1979 Guide to the Coalfields published by the Colliery Guardian
- 1983 Guide to the Coalfields published by the Colliery Guardian
- 1984 Directory of Mines & Quarries published by The British Geological Survey
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