Asby Colliery
Colliery Management (prior to 1970)
| Year | Pit | Position | Name | No. & Class of Certificate |
| 1880 | | Manager: | J. Ramsay | |
| 1882 | | Manager: | J. Ramsay | |
| 1883 | | Manager: | H. Woolcock | |
| 1888 | | Manager: | Francis Coulthart | |
| 1890 | | Manager: | Francis Coulthart | |
| 1894 | | Manager: | Frank Simon | 679 |
| 1896 | | Manager: | Robert Nixon | 2,695 |
| | | Assistant Manager: | George Ashbridge | |
| | | Under Manager: | George Ashbridge | 1,502 ; 2nd |
| 1900 | | Manager: | James Gibb | 457 |
| 1902 | | Manager: | Tom Foster | No cert. |
| 1905 | | Manager: | John Corlett | No cert. |
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