| 1 | TRGX | Terminal Grain Corp. | added 7/1974; 1/1975-1/1980; eliminated 7/1993 | | NAKINA |
| 2 | TRGX | Upper Merion and Plymouth Leasing Co. | added 7/1993; 1/1994; eliminated 4/1996 | | NAKINA |
| 3 | TRGX | First Union Rail | added 4/1996; 7/2000-7/2005 | | NAKINA |
| 4 | TRGX | Terminal Grain Corp. | added 7/74; 1/75-1/80; eliminated 7/93 | | NRHS |
| 5 | TRGX | Upper Merion and Plymouth Leasing Co. | added 7/93; 1/94; eliminated 4/96 | | NRHS |
| 6 | TRGX | First Union Rail | added 4/96; 7/2000 | | NRHS |
| 7 | TRGX | *TERMINAL GRAIN CORP. | | | PWRC |
| 8 | TRGX | +FIRST UNION RAIL [(UMPX) UPPER MERION AND PLYMOUTH LEASING COMPANY] | | | PWRC |
| 9 | TRGX | Terminal Grain Corporation | | | RSRV |
| 10 | TRGX | FIRST UNION RAIL | | | SCAC4 |
