| Year | Operation Name | Number | Type | Opening | District | City | County | Company Name | Railroad Shipments (tons) | Railroad to Mine | Truck Shipments (tons) | Total Production (tons) | Days Worked | Employees | Notes |
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| 1886 | Boston | | Colliery | Slope / Drift | 2 | Jenkins Twp. | Luzerne | Nelson Cowan | 31,350 | Lehigh & Susquehanna | 0 | 31,350 | 121 | 255 | | | 1886 | Schooley | | Colliery | Shaft | 2 | Wyoming | Luzerne | Nelson Cowan | 140,598 | LV | 0 | 140,598 | 201 | 483 | | | 1887 | Boston | | Colliery | Slope / Drift | 2 | Jenkins Twp. | Luzerne | Nelson Cowan | 40,518 | | 0 | 43,232 | 180 | 163 | | | 1887 | Schooley | | Colliery | Shaft | 2 | Exeter | Luzerne | Nelson Cowan | 96,208 | | 0 | 103,138 | 209 | 272 | | | 1888 | Boston | | Colliery | Slope | 2 | Jenkins Twp. | Luzerne | Nelson Cowan | 53,653 | | 0 | 55,615 | 222 | 205 | | | 1888 | Schooley | | Colliery | Shaft | 2 | Exeter | Luzerne | Nelson Cowan | 103,314 | | 0 | 116,330 | 197 | 348 | |
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