A

Railroads	Heralds
A-1(To-Albany) A-2(Albermarle-Ameropan) A-3	A-Heralds
B-1(To-Beaumont) B-2 (Beaver-Blacklands) B-3(Black-Bright) B-4	B-Heralds
C-1(To-Canadian) C-2 (Canajoharie-CENEX C-3(Centerville-Cheyenne) C-4(Chicago) C-5(Chi-Can-To-Clarendon) C-6(Clarendon-Columbia) C-7	C-Heralds
D-1(To-Denver) D-2	D-Heralds
E-1(To-Elkem) E-2	E-Heralds
F-1(To-Forster) F-2	F-Heralds
G-1(To-Grand Junction) G-2	G-Heralds
H I J K	H-Heralds I-Heralds J-Heralds K-Heralds
L-1(To-Lime) L-2	L-Heralds
M-1(To-Milton) M-2(Martin-Mexrail) M-3(MG Industries-Mineral) M-4(Minor-Mononlith) M-5	M-Heralds
N-1(To-New Castle) N-2(New Cornelia-New York) N-3(Nezperce-Northend) N-4(Northern-To-End)	N-Heralds
O-1(To-Olympic) O-2	O-Heralds
P-1(To-Pelham Park) P-2(Pemberton-Phelps Dodge) P-3(Philadelphia-Pittsburg) P-4(Pittsburgh-Portage) P-5	P-Heralds
Q	Q-Heralds
R-1(To-Rinkler) R-2	R-Heralds
S-1(To-St. Thomas) S-2(Salamanca-Saratoga) S-3(Sarnia-Shell) S-4(Shenandoah-South Buffalo) S-5(South Camden-Southwide) S-6	S-Heralds
T-1(To-Texas) T-2(Textainer-Toronto) T-3	T-Heralds
U V	U-Heralds V-Heralds
W-1(To-Webber) W-2 (Webster-Whitneyville) W-3	W-Heralds
X-Y-Z	X-Y-Z-Heralds

Oakland & Antioch Railway Company - 1900's - California - See - Railway List

OCI Chemical Corporation (Oriental Chemical Industries) - 1996 - STAX-SWYX - Connecticut - See - R-Marks

Octel America Incorporated (Great Lakes Chemical Corporation) - OCTX - See - R-Marks

Ogdensburg & Morristown Railroad Company (The) (Utica & Black River Railroad)

Ohio and Little Kanawha Railroad Company - 1955 - West Virginia - See - Report

Ohio & Northwestern Railroad Company (Cincinnati, Portsmouth & Virginia Railroad)

Ohio & Toledo Railroad - 1874-1878 - (Cleveland, Canton & Southern) - Ohio - See - Norfolk Southern Corporation &

Ohio Falls Street Railway Company (Jefferson City Railway Company) (Louisville & Southern Indiana Traction Company)

(Interstate Public Service Company) (Public Service of Indiana) - 1888-1899 - Indiana - (1932 Streetcars Discontinued)

Ohio Indiana & Western Railway Company (Cleveland Cincinnati Chicago & St. Louis Railway Company)

Ohio Public Service Company (Toledo & Eastern Railroad (The)) - 1924-1945 - Ohio - See - Don's Rail Photos & Railway List

Ohio Public Service Company Toledo, Port Clinton & Marblehead (AKA Toledo, Port Clinton & Lakeside)

Ohio Railway Company (The) (Lake Erie & Western Railroad Company) - 1883-1887 - Ohio - See - New York Central Railroad System

Ohio River & Charleston Railroad Company - 1898 - South Carolina - See - Virginia Tech

Ohio River & Lake Erie Railroad (Erie Shenango & Pittsburgh Railway Company) - 1887 - See -

Ohio River & Lake Erie Railroad Company (The Lake Shore & Michigan & Southern Railway Company)

(Cincinnati Columbus & Hocking Valley Railroad) (Detroit Toledo & Ironton Railroad) (Ohio Central Railroad System) -

Oil Creek Junction Railroad Company (The Lake Shore & Michigan Southern Railway Company)

Oklahoma City Junction Railway Company - 1924 - Oklahoma - See - Railway List & Report

Oklahoma-Kansas & Texas Railroad Company (Missouri-Kansas-Texas Railroad Company) - OKKT - Oklahoma - See - Agent &

Olean, Bradford & Warren Railroad Company in Pennsylvania - See - Railway List

Olean, Oswayo & Eastern Railroad Company - 1894 - Pennsylvania - See - Railway List

Olean Railroad (Allegany Central Railroad) (Lackawanna & Pittsburg Railroad) (Central New York & Western Railroad)

Olympic Railroad Company - 1988 - OLYR - Washington - See - R-Marks & Railway List