A&W (Ahnapee & Western)

AC (Algoma Central)

AC&Y

ACFX

ACL

ACMX (Allis Chalmers)

AD&N

AGS

ARR (Alaska Railroad)

AT&SF (Santa Fe)

B&LE

B&M

B&O

B&OCT

B&S (Birmingham & Southern)

BA&P

BCK

BWC

C&BL (Conemaush & Blackjack Railroad)

C&EI

C&H (Calumet & Hecla)

C&I (Cambria & Indiana)

C&IM

C&NW

C&O

C&S (Colorado & Southern)

C&WI

CAS (Canadian Southern)

CB&Q

CGW

CIRR

CMStP&P (Milwaukee Road)

CN

CNJ

CNO&TP (Southern)

CNS&M (Chicago North Shore & Milwaukee)

CofG (Central of Georgia)

COPR (Copper Range Railroad)

CP

CRI&P (Rock Island)

CRR (Clinchfield)

CSSB&SB (Chicago South Shore & South Bend)

CStPM&O (Omaha Road)

CVX

CWP&S (Chicago West Pullman & Southern)

D&H

D&RGW

D&TS

DL&W

DM&IR

DRI&NW

DSS&A

DT&I

DUPX

E&LS

EJ&E

EL (Erie Lackawanna)

ERIE

FBL

FDDM&S (Fort Dodge Des Moines & Southern)

FEC

FGEX

GA (Georgia Railroad)

GACX

GB&W

GCOX

GM&O

GN

GTW

HCRR

INT

ITC

ITTX

KCS

KGB&W

KO&G (Kansas Oklahoma & Gulf)

L&N

LHR

LPS

LS&I

LT (The Lake Terminal Railroad)

LV (Lehigh Valley)

M&StL

MKCRR (McKees Connecting Railroad)

MKT

MON (Monon)

MP

N&B (Northampton & Bath)

N&W

NADX

NC&StL

NdeM

NH

NJI&I (Wabash)

NKP

NMCX

NO&NE (Southern)

NP

NSS

NSW

NWX

NYNH&H (New Haven)

ON (Ontario Northland)

P&LE

P&N

P&PU

P&S (Pittsburgh & Shawmut)

P&WV (Pittsburgh & West Virginia)

PB&R (Patapsco & Black Rivers)

PBNE

PGE

PMK&Y

PRR (Pennsylvania)

RDG (Reading)

RF&P

RS&P

RUT (Rutland)

RVCX (Richter Vinegar Corp)

S&B

SB (South Buffalo Railway)

SBD

SHPX

SLG&W

SLSF (Frisco)

SN (Sacramento Northern)

SOO

SOU

SP

SP&S

SSW

StJ&GI

T&N (Texas & Northern)

TA&G

TC (Tennessee Central)

TCIX

TH&B (Toronto Hamilton & Buffalo)

TM (Texas Mexican)

TP&W

UM&P

UP

URR (Union Railroad)

URTX

USP&F

UTAH

VGN (Virginian)

VTR

WA&G (Wellsville Addison & Galeton)

WAB (Wabash)

WCF&N (Waterloo Cedar Falls & Northern)

WECX (Westinghouse)

WICO

WM (Western Maryland)

WofA

WP

WRX

Y&N (Youngstown & Northern)

YVT