| 1 | WGR | Willamina & Grand Ronde Ry. Co. | added 4/1988; 1/1994-7/2000; eliminated 10/2003 | | NAKINA |
| 2 | WGR | Williamette Valley R.R. Co. | added 10/2003; 7/2005 | | NAKINA |
| 3 | WGR | Willamina & Grand Ronde Ry. Co. | added 4/88; 1/94-7/2000 | | NRHS |
| 4 | WGR | WILLIAMETTE VALLEY RAILWAY CO. [WILLAMINA & GRAND RONDE RAILWAY COMPANY, INC.] | | | PWRC |
| 5 | WGR | Willamina & Grand Ronde Railway | | | RSRV |
| 6 | WGRA | WAGNER, R A TRUCKING COMPANY INC | | | SCAC4 |
| 7 | WGRC | WAGGONERS, INC. | | | SCAC4 |
| 8 | WGRH | Western Greyhound | | GB | TRAFFIC |
| 9 | WGRI | WIGGERS FARMS | | | SCAC4 |
| 10 | WGRN | WALTERS GRAIN AND SUPPLY INC | | | SCAC4 |
| 11 | WGRQ | WINDING ROAD TRANSPORTATION INC | | | SCAC4 |
| 12 | WGRR | Willamina & Grand Ronde R.R. Co. | added 1/1981; eliminated 4/1986 | | NAKINA |
| 13 | WGRR | Willamina & Grand Ronde R.R. Co. | added 1/81; eliminated 4/86 | | NRHS |
| 14 | WGRR | WILLAMETTE VALLEY RAILWAY [WILLAMINA & GRAND RONDE RAILWAY COMPANY, INC.] | | | PWRC |
| 15 | WGRR | Willamina & Grand Ronde Railway | | | RSRV |
| 16 | WGRU | WEIL GROUP RESOURCES, LLC | | USA | BIC |
| 17 | WGRY | Wabash & Grand River Ry. Co. | added 1/1991; eliminated 7/1991; 1/1994 | | NAKINA |
| 18 | WGRY | Wabash & Grand River Ry. Co. | added 1/91; eliminated 7/91; 1/94 | | NRHS |
| 19 | WGRY | WABASH & GRAND RIVER RAILWAY CO. | | | PWRC |
