| Ahring # 1 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Bueker Pit |  | Private |  | Clays | 
| Estes # 1 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Felhaber | General Refractories | Private |  | Clays | 
| Fisher Pit |  | Private |  | Clays | 
| Frey #3 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Havener # 3 | Allied Chemical Corp., Industrial Chemicals Division | Private |  | Clays | 
| Helkergoumer Pit | Langenberg Refractories | Private |  | Clays | 
| Hemplemann # 1 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Hesemann Pit | Kaiser Refractories | Private |  | Clays | 
| Lantenschlaeger Pit | Kaiser Refractories | Private |  | Clays | 
| Muir # 1 | Allied Chemical Corp., Industrial Chemicals Division | Private |  | Clays | 
| Nebelsick Pit |  | Private |  | Clays | 
| Piofcyk # 2 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Rose Pit |  | Private |  | Clays | 
| Rutz # 1 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Schaffer # 7 | Green Refractories Inc., A. P. | Private |  | Clays | 
| Schlotave Pit | Langenberg Refractories | Private |  | Clays | 
| Skornia # 1 | Allied Chemical Corp., Industrial Chemicals Division | Private |  | Clays | 
| Sneed # 1 |  | Private |  | Clays | 
| Steinbeck Pit |  | Private |  | Clays | 
| Unknown |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay | General Refractories | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay | Missouri Refractories | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay | Missouri Refractories | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay | C-E Refractories | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay | Green Refractories Inc., A. P. | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Unknown - Clay |  | Private |  | Clays | 
| Watkins Pit |  | Private |  | Clays | 
| Zelch # 3 | Green Refractories Inc., A. P. | Private |  | Clays |