AA – Ann Arbor

A&WP – Atlanta & West Point

ACL – Atlantic Coast Line

ACY – Akron, Canton & Youngstown

ART – American Refrigerator Transit

ATSF – Santa Fe (Actual =Atchison, Topeka & Santa Fe)

B&M – Boston & Maine

B&) – Baltimore & Ohio

BCOL – British Columbia Railway

BCIT – BC Rail

BN – Burlington Northern

BNSF – Burlington Northern Santa Fe (1996 Merger)

BS – Birmingham Southern

C&G – Columbus & Greenville

C&O – Chesapeake & Ohio

C&S – Colorado & Southern (CB&Q Subsidiary)

CB&Q – Chicago, Burlington & Quincy

CG – Central of Georgia

CN – Canadian National

CNJ – Central Railroad of New Jersey/Jersey Central

CNW – Chicago & Nom Western

CP – Canadian Pacific

CR – Conrail

CRR – Clinchfield (Actual = Carolina, Clinchfield & Ohio)

CSX – CSX Transportation

D&H – Delaware & Hudson

DL&W – Delaware, Lackawanna & Western (a.k.a. Lackawanna)

DT&I – Detroit, Toledo & Ironton

DMIR – Duluth, Missabe & Iron Range (a.k.a. Missabe Road)

DRGW – Rio Grande (Actual = Denver & Rio Grande Western)

EL – Erie-Lackawanna

FEC – Florida East Coast

FGE – Fruit Growers Express

FNM – Fencarriles Nacionales de Mexico (Actual = Mexican National Railways)

GF – Georgia & Florida

GM&O – Gulf, Mobile & Ohio

GN – Great Northern

GTW – Grand Trunk Western

IC – Illinois Central

KCS – Kansas City Southern

KCSM – Kansas City Southern de Mexico

L&N – Louisville & Nashville

LS&I – Lake Superior & Ishpeming

LV – Lehigh Valley

MEC – Maine Central

MILW – Milwaukee Road (Actual = Chicago, Milwaukee, St. Paul & Pacific)

MKT – Katy (Actual = Missouri-Kansas-Texas)

MN&S – Minneapolis, Northfield & Southern

MON – Monon (Actual = Chicago, Indianapolis & Louisville)

MOW – Maintenance-of-Way

MP – Missouri Pacific

NdeM – National Railways of Mexico

NH – New Haven (Actual =New York, New Haven &Hartford)

NKP – Nickel Plate Road (Actual = New York, Chicago & St. Louis)

NP – Northern Pacific

NS – Norfolk Southern

N&W – Norfolk & Western

NYC – New York Central

PC – Penn Central

PFE – Pacific Fruit Express

PRR – Pennsylvania Railroad (Also “Pennsy”)

RDG – Reading

RI – Rock Island (Actual = Chicago, Rock Island & Pacific)

RUT – Rutland

SAL – Seaboard Air Line (a.k.a. “Seaboard”)

SCL – Seaboard Coast Line

SLSF – St. Louis-San Francisco “Frisco”

SOO – SOO Line (Actual = Minneapolis, St. Paul & Sault Ste. Marie)

SOU – Southern Railway

SP – Southern Pacific

SP&S – Spokane, Portland &Seattle

SSW – Cotton Belt (Actual = St. Louis-Southwestern)

UP – Union Pacific

TFM – Transportatacion Ferroviaria Mexicano

TTX – TTX Corporation

W of A – Western Railway of Alabama

WC – Wisconsin Central Limited

WM – Western Maryland

WP – Western Pacific