| Central Pennsylvania Lumber Co. No. 24, Sheffield, PA |
596 |
| Central Pennsylvania Lumber Co. No. 25, Sheffield, PA |
852 |
| Central Pennsylvania Lumber Co. No. 3, Masten, PA |
453 |
| Central Pennsylvania Lumber Co. No. 4, Masten, PA |
596 |
| Central Pennsylvania Lumber Co. No. 5, Masten, PA |
630 |
| Central Pennsylvania Lumber Co. No. 50, Loleta, PA |
227 |
| Central Pennsylvania Lumber Co. No. 6, Masten, PA |
852 |
| Central Pennsylvania Lumber Co. No. 60, Medix Run, PA |
818 |
| Central Pennsylvania Lumber Co. No. 60, Penfield, PA |
818 |
| Central Pennsylvania Lumber Co. No. 60, Sheffield, PA |
818 |
| Central Pennsylvania Lumber Co. No. 61, Medix Run, PA |
822 |
| Central Pennsylvania Lumber Co. No. 61, Penfield, PA |
822 |
| Central Pennsylvania Lumber Co. No. 61, Sheffield, PA |
822 |
| Central Pennsylvania Lumber Co. No. 62, Costello, PA |
838 |
| Central Pennsylvania Lumber Co. No. 62, Kinzua, PA |
838 |
| Central Pennsylvania Lumber Co. No. 62, Sheffield, PA |
838 |
| Central Pennsylvania Lumber Co. No. 68, Masten, PA |
1195 |
| Central Pennsylvania Lumber Co. No. 7, Masten, PA |
1015 |
| Clawson & Fisk, Glen Hazel, PA |
X203 |
| Clawson Chemical Co., Barnes, PA |
X541 |
| Clawson Chemical Co., Barnes, PA |
X149 |
| Clawson Chemical Co., Barnes, PA |
1115 |
| Clawson Chemical Co., Barnes, PA |
1155 |
| Clawson Chemical Co., Glen Hazel, PA |
X203 |
| Clinton Mining Co. No. 4, Clinton County, PA |
X80 |
| Clough, L. S. - & Co., Cloughs Mills, PA |
X30 |
| Coleman Lumber Co., Coleman Siding, PA |
X435 |
| Coleman, Harter & McCormick No. 2, Tionesta, PA |
X136 |
| Collins & Watson No. 101, Golinza, PA |
101 |
| Collins & Watson No. 5, Golinza, PA |
740 |
| Collins, T. D. - No. 148 THE GOLD BUG, Nebraska and Kellettville, PA |
148 |
| Conrad, J. Penn, Philadelphia, PA |
X267 |
| Consolidated Lumber Co. No. 1, PA |
X164 |
| Cook & Duncan Lumber Co. No. 1, Fort Hill, PA |
798 |
| Cook & Duncan Lumber Co. No. 3, Fort Hill, PA |
1271 |
| Cook & Parsons, Bidwell, PA |
X290 |
| Cook & Sechler, West Salisbury, PA |
X538 |
| Corry Historical Society Museum, Corry, PA |
1681 |
| Crawford Coal & Coke Co. No. 4, Highhouse, PA |
X436 |
| Dahoga & Highland Railroad No. 2, Dahoga, PA |
X82 |
| Dallet & Co., Philadelphia, PA |
X417 |
| Davis, J. B. - No. 1, Bruner Run, PA |
X335 |
| Davis, J. B. - No. 1, Humbert , PA |
X335 |
| Dents Run Railroad No. 329, Dents Run, PA |
329 |
| Diamond Rock Sand Co., Valley Forge, PA |
X492 |
| Drake & Stratton, Black Diamond, PA |
X193 |
| Duncan Lumber Co. No. 1, Fort Hill, PA |
798 |
| Duncan Lumber Co. No. 2, Fort Hill, PA |
1271 |
| Duncan Lumber Co. No. 3, Fort Hill, PA |
1271 |
| Duncan Mining Co. No. 1, ST. CHRISTOPHER, Dunlo, PA |
X176 |
