| 1 | CHRX | The Chesapeake Division | 1/1994-7/2005 (not listed) | | NAKINA |
| 2 | CHRX | Canadian Hidrogas Resources Ltd. | added 7/1969; 4/1970-1/1980; eliminated 1/1983 | | NAKINA |
| 3 | CHRX | Canadian Hidrogas Resources Ltd. | added 7/69; 4/70-1/80; eliminated 1/83 | | NRHS |
| 4 | CHRX | The Chesapeake Division | 1/94-7/2000 | | NRHS |
| 5 | CHRX | *CANADIAN HIDROGAS RESOURCES, LTD. | | | PWRC |
| 6 | CHRX | *CHESAPEAKE RAILROAD CO. | | | PWRC |
| 7 | CHRX | *CHEVRON OIL & REFINING CO. | | | PWRC |
| 8 | CHRX | +THE CHESAPEAKE DIV., RAILROAD ENTHUSIASTS, INC. | | | PWRC |
| 9 | CHRX | The Chesapeake Division | | | RSRV |
| 10 | CHRX | THE CHESAPEAKE DIV., RAILROAD ENTHU | | | SCAC4 |
