ACL
| Atlantic Coast Line |
|
2
|
1
| ACL |
AEC
| Atlantic and East Carolina Railway Compa |
|
0
|
1
| AEC |
ATSF
| Atchison Topeka & Santa Fe |
|
2
|
6
| ATSF |
BAP
| Butte Anaconda & Pacific |
|
0
|
1
| BAP |
BCOL
| Canadian National Railways |
|
2
|
7
| BCOL |
BN
| Burlington Northern |
|
38
|
29
| BN |
BO
| Baltimore & Ohio |
|
3
|
3
| BO |
CBQ
| Chicago Burlington & Quincy |
|
1
|
1
| CBQ |
CNR
| Canada Northern |
|
1
|
0
| CNR |
CNW
| Chicago & Northwestern |
|
1
|
0
| CNW |
CPRR
| Central Pacific Railroad |
|
2
|
0
| CPRR |
CRIP
| Chicago Rock Island & Pacific |
|
1
|
0
| CRIP |
CRR
| Clinchfield |
|
0
|
2
| CRR |
DLW
| Delaware Lackawanna & Western |
|
2
|
0
| DLW |
DMIR
| Duluth Missabe & Iron Range |
|
2
|
0
| DMIR |
DRGW
| Denver & Rio Grande Western |
|
1
|
6
| DRGW |
EL
| Erie Lackawanna |
|
1
|
0
| EL |
EPTC
| East Portland Traction |
|
0
|
1
| EPTC |
FWD
| Fort Worth & Denver |
|
0
|
2
| FWD |
GA
| Georgia Railroad |
|
1
|
0
| GA |
GN
| Great Northern |
|
0
|
2
| GN |
GTW
| Grand Trunk Western |
|
0
|
1
| GTW |
HVRR
| Hocking Valley |
|
0
|
1
| HVRR |
IC
| Illinois Central |
|
0
|
1
| IC |
ITC
| Illinois Terminal Railroad |
|
1
|
0
| ITC |
KNOR
| Klamath Northern Railway |
|
1
|
2
| KNOR |
LV
| Lehigh Valley |
|
1
|
0
| LV |
MILW
| Milwaukee Road |
|
1
|
0
| MILW |
MP
| Missouri Pacific |
|
0
|
4
| MP |
NKP
| Nickel Plate |
|
2
|
0
| NKP |
NP
| Northern Pacific |
|
0
|
7
| NP |
NPC
| North Pacific Coast |
|
1
|
0
| NPC |
NYC
| New York Central |
|
1
|
0
| NYC |
OCE
| Oregon California & Eastern |
|
17
|
31
| OCE |
ONW
| Oregon & Northwestern |
|
2
|
5
| ONW |
OPE
| Oregon Pacific & Eastern |
|
0
|
11
| OPE |
PGE
| Pacific Great Eastern |
|
0
|
3
| PGE |
PLYX
| US Plywood |
|
1
|
0
| PLYX |
PRR
| Pennsylvania Railroad |
|
5
|
1
| PRR |
PRTD
| Portland Traction |
|
2
|
0
| PRTD |
REX
| Railway Express Agency, Inc. |
|
0
|
1
| REX |
SCL
| Seaboard Coast Line |
|
1
|
3
| SCL |
SLSF
| Saint Louis-San Francisco |
|
0
|
2
| SLSF |
SOU
| Southern |
|
3
|
3
| SOU |
SP
| Southern Pacific |
|
6
|
7
| SP |
SSW
| St Louis Southwestern (Cotton Belt) |
|
0
|
2
| SSW |
TAG
| Tennessee, Alabama & Georgia |
|
1
|
0
| TAG |
TCG
| Tucson Cornelia and Gila Bend Railroad Company |
|
0
|
1
| TCG |
UO
| Union Railway of Oregon |
|
0
|
16
| UO |
WAB
| Wabash |
|
0
|
1
| WAB |
WM
| Western Maryland |
|
4
|
1
| WM |
WP
| Western Pacific |
|
1
|
0
| WP |