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Update January 1, 2013
Omaha & Council Bluffs Railway - See - Railway List
Omaha and Council Bluffs Street Railway Company - 1905-1913 - Nebraska
Omaha & Republican Valley Railway Company - 1876-1898 - Nebraska - See - Railway List
Omaha & St. Louis Railway Company - See - Railway List
Omaha Belt Railway Company - 1886 - Nebraska - See - Railway List
Omaha Bridge and Terminal Railway Company - 1890's - Nebraska - See - Railway List
Omaha Henry Doorly Zoo Railroad - Nebraska
Omaha, Kansas City & Eastern Railroad - 1897-1902 - See - Railway List
Omaha, Lincoln & Beatrice Railroad - 1912-1950 - Nebraska - See - Don's Rail Photos
Omaha, Lincoln & Beatrice Railway Company - OLB - Nebraska - See - R-Marks & Railway List
Omaha, Niobrara & Black Hills Railroad - 1876 - Nebraska - See - Union Pacific Railroad Chronological History
Omaha Public Power District - OMAX & OPPX - Nebraska - See - R-Marks
Omaha Road - 1880-1972 - See - Railway List
Omaha Southern Railway Company
Omaha Transit Company - 1960's - Nebraska
Omaha Zoo Railroad - Nebraska - See - Tapes
OmniTRAX, Incorporated - 1993 - OMLX - See - R-Marks & Railway List
OmniTRAX Leasing, Limited (OmniTRAX Equipment, Incorporated) (OmniTRAX, Incorporated) - (OLL) - 1994
Oneida & Western Railroad Company - 1983 - Kentucky-Tennessee - See - Railway List & Report
Oneida Railway Company - 1890's - New York
Oneonta & Mohawk Railway - See - Railway List
Oneonta & Mohawk Valley - See - Railway List
Oneonta, Cooperstown & Richfield Springs - See - Railway List
Ontario & Quebec Railroad - 1883 - 1950’s - Ontario
Ontario & Quebec Railway - See - Railway List
Ontario and Rainy River Railway (Canadian Northern Railway) (Canadian National Railway) - 1890-1903 -
Minnesota-Ontario - See - Genealogy
Ontario & San Antonia Heights Railroad Company
Ontario & Western Railway - 1872-1937
Ontario & Western Railway Historical Society - New York
Ontario, Carbondale & Scranton Railway - 1888 - New York - See - Railway List
Ontario, Carbondale and Scranton Railway Company - See - Railway List
Ontario Central Railroad Corporation (Ontario Lines) (Ontario Eastern Railroad Corporation)
(Ontario Midland Railroad Corporation) - ONCT - New York - See - R-Marks & Railway List
Ontario Eastern Rail Road Corporation (Jersey Southern Railway) (Ontario Lines) - JSRW - New York - See - R-Marks &
Ontario Hydro-Electric Power Commission - 1930 - CNHX-CPHX-HEPX - Ontario - See - R-Marks
Ontario Lines-Midland/Central/Eastern
Ontario L’Original Railway Incorporated (RailTex) - 1996 - OLO - See - Railway List
Ontario Midland Railroad Corporation (Ontario Lines) (Ontario Eastern Railroad Corporation)
(Ontario Central Railroad Corporation) - OMID - New York - See - R-Marks & Railway List
Ontario Midland Rail Excursions - New York
Ontario Northland Rail Services - 1946 - Ontario
Ontario Northland Railway (Ontario Northland Railway Commission) - 1900-1946 / 1946 - ONT & ONTA -
Ontario - See - R-Marks & Railway List
Ontario Northland Railway Commission (Government of Ontario) - 1946 - Ontario
Ontario Northland Transportation - 1902-1946 - Ontario
Ontario Pacific Railway Company (Ottawa & New York Railway)
(New York Central & Hudson River Railroad Company) - 1882-1897 - New York
Ontario Railway History Page - Ontario
Ontario, Simcoe & Huron Railroad Union Company - 1853-1858 - Ontario - See - Railway List
Ontario Southern Railroad - 1896-1898 - Ontario - See - Railway List
Ontario Southland Railway Incorporated - 1992 - OSRX - Ontario - See - R-Marks
Ontonagon & Brule Railroad Company (Milwaukee & Northern Railroad Company) (Chicago, Milwaukee & St. Paul Railroad) -
1880 - Michigan - (80 Miles; Ontonagon to Brule River; Sold 1890 to Milwaukee & Northern Railroad Company) -
See - Copper Country Railroads
Ontonagon & Brule River Railroad Company of Michigan - 1892-1946 - Michigan - See - Railroad Collections
Ontonagon & Flintsteel Railway Company - 1909-1921 - Michigan - (Ontonagon Lumber Company; Dissolved 1921)
Ontonagon & Montreal River Railroad Company - 1880 - Michigan - (50 Miles;
Ontonagon River near Rockland South West to Montreal River; Charter Lapsed)
Ontonagon & Southwestern Railway Company - 1904 - Michigan - (25 Miles; Ontonagon Southwesterly;
Headquarters in Ontonagon; Charter Lapsed)
Ontonagon & State Line Rail Road Company - 1856 - Michigan - (80 Miles;
Ontonagon to Wisconsin State Line; Merged 1857 into Chicago St. Paul & Fond Du Lac)
Ontonagon Fibre Company - Michigan - (Private Logging Road; Headquarters in Ontonagon) - See - Copper Country Railroads
Ontonagon, Gogebec & Wisconsin Rail Road Company -1882 - Michigan - (70 Miles; Ontonagon to
Wisconsin State Line South of Lake Gogebec; Chapter Lapsed)
Ontonagon Railroad Company - 1904-1931 - Michigan - (6.65 Miles; Connect C. V. McMillan Logging Railroad to
Chicago Milwaukee St. Paul & Pacific Railroad; Abandoned 1931) - See - Copper Country Railroads
Ontonagon Southern Railroad Company - 1907 - Michigan - (50 Miles; Wisconsin State Line Northwesterly to town of Mass, Michigan)
On Track - New York - See - Schedule
On-Track Railcar Services Incorporated - HRRX & ONTX - See - R-Marks
O/O Truck Sales, Incorporated - 1989-1996 - Delaware
Opelika & Auburn Railway Company
Opelousas, Gulf & Northeastern Railway - 1904 - Louisiana - See - Railway List
Operations Unlimited, Incorporated (Florida East Coast Railway Company) - 1978-1994 - Florida
Oppenheimer Casing Company - Illinois
Ore & Coal Exchange - 1918-1995
Ore Belt Railroad Company - 1888-1914 - Georgia
Orange & Alexandria Railroad Company - 1848-1867 - Virginia - See - Railway List
Orange & Fredericksburg Railroad - See - Railway List
Orange and Northwestern Railroad Company - Texas
Orange, Alexandria & Manassas Railroad Company - 1867-1872 - See - Railway List
Orange Belt - See - Railway List
Orange County Railroad Company - See - Railway List
Orange County Transportation Authority - California
Orange Empire Railroad Museum - California - See - Fallen Flags
Orange Empire Railway Museum - California - See - Fallen Flags
Orange-Keysville Railway Company - 1906 - See - Historical-1906
Orange Mountain Traction - See - Railway List
Orange Port Terminal Railway Company (Gulf Coast Rail Service, Incorporated) - 1995 - (OPTR) - OPT -Texas - See - R-Marks
Orangeville & Lehigh Railroad Company (The) (Wilkesbarre & Western Railway Company (The))
(Turbotville & Williamsport Railroad Company) (Central Pennsylvania & Western Railroad Company)
(Susquehanna, Bloomsburg & Berwick Railroad Company) (Pennsylvania Railroad Company (The))
(Consolidated Rail Corporation) - 1892-1893 - Pennsylvania
Orangeville Brampton Railway - Ontario
Oregon and California Rail Road Company - 1869-1884 - Oregon-California - See - Canby Depot Museum & Railway List
Oregon & Navigation Company - See - Railway List
Oregon & Northwestern Railroad Company - 1934 - ONW - Oregon - See - Railway List
Oregon & Texas Railway Company
Oregon and Transcontinental Company - 1882-1885 - Oregon
Oregon & Washington Territory Railroad - (O&WT) - 1889-1889 - Washington - See - Grays Harbor
Oregon & Washington Territory Railway - See - Railway List
Oregon Branch Pacific Railroad - 1860's - Oregon
Oregon Branch Pacific Rail Road Company - 1860's - Oregon
Oregon, California & Eastern Railroad - See - Railway List
Oregon, California & Eastern Railway Company - 1915-1991 - OCE - Oregon - See - R-Marks &
Reference & Railway List & Don's Rail Photos
Oregon Central & Eastern Railroad Company - See - Railway List
Oregon Central & Eastern Railway (Willamette Valley & Coast Railroad)
(Corvallis & Yaquina Bay Railroad) (Oregon Railway) (Oregonian Railway) - 1894 - Oregon - See - Depot
Oregon Department of Agriculture - OREX - Oregon - See - R-Marks
Oregon Eastern Railroad - Oregon - See - Union Pacific Railroad Chronological History
Oregon Electric Railway Company (Burlington Northern Division) - OE - 1912-1940’s - Oregon - See -
Trolley Park Museum & Oregon Electric Railway Museum & Railway List &
Oregon Electric Railway Historical Society & Burlington Northern Railroad Company Incorporated
Oregon Electric Railway Historical Society - Oregon
Oregon Electric Railway Museum (Oregon Electric Railway Historical Society) - Oregon
Oregonian Railway (Willamette Valley & Coast Railroad) (Corvallis & Yaquina Bay Railroad)
(Oregon Railway) (Oregon Central & Eastern Railway) - 1880 - Oregon - See - Depot & Railway List
Oregon Operation Lifesaver - Oregon
Oregon, Pacific and Eastern Railway Company - 1896-1994 - OPE - Oregon - See - Decisions &
Oregon Pacific Railroad Company - 1997 - (OPR) - Oregon - See - Railway List
Oregon Portage Railroad - See - Railway List
Oregon Railroad & Navigation Company - 1880 - Oregon-Washington - See - Railway List &
Union Pacific Railroad Chronological History
Oregon Railway & Navigation Company - 1882 - Oregon - See - Railway List
Oregon Railway (Willamette Valley & Coast Railroad) (Corvallis & Yaquina Bay Railroad)
(Oregonian Railway) (Oregon Central & Eastern Railway) - 1880- Oregon - See - Depot
Oregon Railway Extensions Company - See - Railway List
Oregon Short Line & Utah Northern Railway - 1869 - Oregon-Utah - See - Railway List
Oregon Short Line Railroad Company - 1897 - Oregon - See - Railway List & Union Pacific Railroad Chronological History
Oregon Steam Navigation Company - See - Railway List
Oregon Trunk Railway - Oregon - See - Agreement & Reference 1 & Historical & Railway List
Oregon-Washington Railroad and Navigation Company - See - Railway List
Oregon-Washington Railway & Navigation Company - 1889-1913 - Oregon - See - Union Pacific Railroad Chronological History
Oregon Water Power & Railway Company - See - Railway List
Orient Overseas Line Incorporated - OOCZ-OOLU-OOUU-WCLU
Orland, Newville & Pacific Railroad - California
Orlando & Winter Park Railway - See - Railway List
Orlando Utilities Commission - OUCX - Florida - See - R-Marks
Orleans Kenner Traction Company - See - Railway List
Orleans, West Baden & French Lick Springs Railroad
Orleans, West Baden & French Lick Springs Railroad Company
Orleans, West Baden & French Lick Springs Railway Company - 1888-1897 - Indiana
Ormet Railroad Corporation - ORA - See - Railway List
Oroville & Virginia City Railroad - 1869 - Nevada
Oroya Railway - See - Railway List
Orrville Railroad Heritage Society - Ohio
Orrville Railroad Museum - Ohio
Ortner Freight Car Company - OFCX
Orville Dam Construction - 1968
Osage Railroad (Part of SEKR-Watco) - ORR - Oklahoma - See - R-Marks & Frequencies & Railway List &
Union Pacific Railroad Chronological History
Osage Valley & Southern Kansas Railroad - 1860 - Kansas
Osborne Bay & Wharf - See - Railway List
Oscar J. Glover - OJGX - Nebraska - See - R-Marks
Oscar Mayer Company - See - Railway List
Osceola & Lake Jessup Railway - Wisconsin
Osceola & St. Croix Valley Railway - 1990's - Minnesota-Wisconsin - See - Genealogy
Oshand Railway - 1963 - Ontario
Oshawa Railway and Navigation Company (Oshawa Railway Company) (Grand Trunk Railway)
(Canadian National Railways) (Canadian National Electric Railways) - 1887-1891 - Ontario
Oshawa Railway Company (The) (Grand Trunk Railway) (Canadian National Railways) (Canadian National Electric Railways) -
1891-1959 - Ontario - See - Don's Rail Photos & Oshawa Railway Company-2 & Railway List
Oshkosh,
Fremont & Wausau Railroad - 1861 - Wisconsin
Oshkosh Street Railway Company (Citizens' Traction Company of Oshkosh) (Winnebago Traction Company)
(Wisconsin Electric Railway Company) (Eastern Wisconsin Electric Company)
(Wisconsin Power & Light Company) - 1897 - Wisconsin - (1930-Streetcars Discontinued)
Oshkosh Transportation Company - Wisconsin - See - Railway List
Osoyoos & Okanagan Railway Company - Wisconsin - See - Railway List
Ostrander Railway & Timber Company - 1924 - Oregon - See - Railway List
Ostrich Farm - See - Railway List
Oswego & Hartford Railway Incorporated - OHRY - See - R-Marks
Oswego & Indiana Plank Road Company Of Illinois (Joliet & Northern Railroad)
(Michigan Central Railroad Company) (New York Central Railroad System) - 1854-1854 - Illinois-Indiana
Oswego & Rome Railroad Company (New York Central & Hudson River Railroad Company) - 1863-1913 -New York -
See - Railway List
Oswego and Syracuse Railroad Company - 1940's - See - Railway List
Oswego Railroad Bridge Company (Rome Watertown & Ogdensburg Railroad)
(New York Central & Hudson River Railroad Company) - 1872-1913 - New York
Otis Elevating Railway - New York - See - Railway List
Otis Railroad - New York - See - Railway List
Otsego & Herkimer - New York - See - Railway List
Ottawa, Amprior & Parry Sound Railway - 1888-1991 - See - Canada Atlantic Railway
Ottawa & Burlington Railroad - 1863 - Kansas
Ottawa & Gatineau Railway - See - Railway List
Ottawa & New York Railway Company (New York Central & Hudson River Railroad Company) - 1882-1904 - Ottawa
Ottawa & Parry Sound Railway - 1888-1991 - See - Canada Atlantic Railway
Ottawa & Prescott Railway Company - 1855 - Ontario - See - Railway List
Ottawa Central Railway (Quebec Railway Corporation) - 1998 - (OCRR) - Ontario-Quebec - See - Ottawa Central Railway-2
Ottawa City Passenger Railway Company (Ottawa Electric Street Railway Company)
(Ottawa Electric Railway Company) - 1866-1894 - Ontario - See - Ottawa City Passenger Railway Company-2
Ottawa Electric Railway Company (Ottawa Traction Company, Limited) - 1894-1948 - Ontario -
See - Railway List & Ottawa Electric Railway Company-2
Ottawa Electric Street Railway Company (Ottawa Electric Railway) - 1891-1894 - Ontario -
(1934-Streetcars Discontinued) - See - Streetcars & Ottawa Electric Street Railway Company-2
Ottawa/Hull Street Railway - 1866-1959 - Ontario
Ottawa L'Orignal Railway (RailTex) - 1996 - Ottowa
Ottawa Northern & Western - See - Railway List
Ottawa, Oswego & Fox River Valley Railroad - 1871 - Illinois
Ottawa Traction Company, Limited - Ontario
Ottawa Transportation Commission - 1948-1972 - Ottowa - See - Railway List
Ottawa Valley Rail Link - 1996 - Ottowa
Ottawa Valley Railway - OVR - Ontario
Ottaway Locomotives - 1966 - Illinois
Otter Tail Power Company - BSPX - Minnesota - See - R-Marks
Otter Tail Valley Railroad Company Incorporated (Rail America) - 1986? / 1996 - OTVR - Minnesota - See -
R-Marks & Railway List & Genealogy
Otter Valley Railroad - OV - 1992 - Iowa
Ottumwa Connecting Railroad - OTUM - See - R-Marks
Ottumwa Terminal Railroad Company - OTT - See - R-Marks
Ouachita and Northwestern Railroad Company
Ouachita Railroad, Incorporated (Arkansas Short Line Railroads, Incorporated) - (ORI) - 1991 -
OUCH - Louisiana- Arkansas - See - R-Marks & Railway List
Outer Harbor Terminal Railway Company - California
Overland Dispatch - See - Railway List
Overnite Transportation Company - OVNZ - Virginia - See - R-Marks
Overseas Container Limited - GCDU & OCLU - See - R-Marks
Overseas Railway - See - Railway List
Overton Railroad - See - Railway List
Owasco River Railway - OR - See - R-Marks & Railway List
Owego & Harford Railway, Incorporated - 1996 - OHRY - New York-Pennsylvania
Owen & Northern Railroad - 1904-1929 - Wisconsin - See - Owen & Northern Railroad-2 &
Owensboro and Nashville Railway Company - See - Railway List
Owensboro, Falls of Rough & Green River Railroad - See - Railway List
Owens Corning Fiberglass - OCFX - Ohio
Owensville Terminal Company, Incorporated - 1996 - OTCO - Indiana - See - R-Marks & Determination
Owl's Head Transportation Museum - Maine
Oxford & Clarksville Railroad Company - 1886-1895 - North Carolina
Oxford & Henderson Railroad Company - 1879-1895 - North Carolina
Oxford and New Glasgow Railway - Nova Scotia
Oxford Foundry & Machine Company Limited - 1924 - Nova Scotia
Oxford Group, Incorporated (The) - 1988