| 1 | SMRX | Sampierre Chemical Corp. | added 10/1960; 4/1961; eliminated 4/1963 | | NAKINA |
| 2 | SMRX | Atlanta Chapter—National Railway Historical Society, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 3 | SMRX | Sampierre Chemical Corp. | added 10/60; 4/61 | | NRHS |
| 4 | SMRX | Atlanta Chapter--National Railway Historical Society, Inc. | Jul-00 | | NRHS |
| 5 | SMRX | *SAMPIERRE CHEMICAL CORP. | | | PWRC |
| 6 | SMRX | +STONE MOUNTAIN RAILROAD (ATLANTA CHAPTER , NATIONAL RAILWAY HISTORICAL SOCIETY) | | | PWRC |
| 7 | SMRX | Southeastern Railway Museum | | | RSRV |
| 8 | SMRX | ATLANTA CHAPTER - NATIONAL RAILWAY | | | SCAC4 |
