NORTHWESTERN RAILROADS
CHICAGO MILWAUKEE ST. PAUL & PACIFIC GREAT NORTHERN NORTHERN PACIFIC
OREGON RAILROAD & NAVIGATION COMPANY OREGON SHORT LINE SPOKANE, PORTLAND & SEATTLE
UTAH NORTHERN   WESTERN PACIFIC
SOUTHWESTERN RAILROADS
ATCHISON, TOPEKA & SANTA FE EL PASO & NORTH EASTERN - EL PASO & SOUTHWESTERN GALVESTON HARRISBURG & SAN ANTONIO
LOS ANGELES & SALT LAKE SAN PEDRO LOS ANGELES & SALT LAKE SOUTHERN PACIFIC
TEXAS & NEW ORLEANS   TEXAS & PACIFIC
  ROCKY MOUNTAINS RAILROADS  
COLORADO & SOUTHERN DENVER LEADVILLE & GUNNISON DENVER & NEW ORLEANS
DENVER & RIO GRANDE WESTERN DENVER & SALT LAKE DENVER & SOUTH PARK & PACIFIC
DENVER TEXAS & GULF UNION PACIFIC UTAH
MIDWESTERN RAILROADS
ALTON CENTRAL IOWA CHICAGO & ALTON
CHICAGO BURLINGTON & QUINCY CHICAGO GREAT WESTERN CHICAGO ST. PAUL MINNEAPOLIS & OMAHA
CHICAGO & WEST MICHIGAN DULUTH SOUTH SHORE & ATLANTIC MARQUETTE HOUGHTON & OTONAGON
TERRE HAUTE & INDIANAPOLIS TOLEDO ST. LOUIS & KANSAS CITY TOLEDO WABASH & WESTERN
  WABASH  
CENTRAL BASIN RAILROADS
ILLINOIS CENTRAL KANSAS CITY SOUTHERN KANSAS OKLAHOMA & GULF
MISSOURI OKLAHOMA & GULF MISSOURI PACIFIC ST. LOUIS IRON MOUNTAINS & SOUTHERN
  ST. LOUIS & SAN FRANCISCO  
SOUTHEASTERN RAILROADS
ALABAMA GREAT SOUTHERN ATLANTIC MISSISSIPPI & OHIO CAROLINA CLINCHFIELD & OHIO
CENTRAL OF GEORGIA CHESAPEAKE & OHIO CINCINNATI NEW ORLEANS & TEXAS PACIFIC
GEORGIA RAILROAD & BANKING INTERSTATE NASHVILLE CHATTANOOGA & ST. LOUIS
NORFOLK & WESTERN RICHMOND FRIFICKSBURG & POTOMAC SEABOARD AIR LINE
SOUTH CAROLINA CANAL & RAILROAD COMPANY SOUTHERN TENNESSEE CENTRAL
VIRGINIAN   WINSTON-SALEM SOUTHBOND
NORTHEASTERN RAILROADS
BALTIMORE & OHIO BOSTON & ALBANY BOSTON CLINTON & FITCHBURG
BOSTON & MAINE BOSTON REVERE BEACH & LYNN BUFFALO ROCHESTER & PITTSBURGH
CENTRAL VERMONT DELAWARE & HUDSON ERIE
ERIE & KALAMAZOO HOCKING VALLEY LAKE SHORE & MICHIGAN SOUTHERN
LEHIGH VALLEY LONG ISLAND MAINE CENTRAL
MICHIGAN CENTRAL NEW YORK CENTRAL NEW YORK CENTRAL & HUDSON RIVER
NEW YORK CHICAGO & ST. LOUIS NEW YORK LAKE ERIE & WESTERN NEW YORK NEW HAVEN & HARTFORD
OLD COLONY PENNSYLVANIA PHILADELPHIA & READING
PITTSBURGH & LAKE ERIE PITTSBURGH & WEST VIRGINIA READING
WESTERN MARYLAND   WHEELING & LAKE ERIE
LUMBER AND MINING RAILROADS
ARGENTINE CENTRAL ARGENTINE & GRAY'S PEAK BINGHAM & GARFIELD
BUFFAL & SUSQUEANNA CAROLINA & NORTHWESTERN DULUTH MISSABE & IRON RANGE
DULUTH MISSABE & NORTHERN GREEEBIER CHEAT & ELK KENNECOT COPPER CORP.
MCCLOUD RIVER MONTANA UNION RAPID CITY BLACK GILLS & WESTERN
RIO GRANDE SOUTHERN UINTAH UTAH COPPER CO.
  WEYERHAEUSER TIMBER CO.  
INDUSTRIAL SWITCHING AND TOURIST RAILROADS
ALAN WOOD STEEL CO. ALTON & SOUTHERN BALDWIN LOCOMOTIVE WORKS
BETHLEHEM IRON CO. CASTRO POINT TERMINAL CRIPPLE CREEK & VIKTOR
DAYTON POWER & LIGHT DICK CONTRUCTION CO DICK CONTRACTING CO.
FORD MOTOR CO. HEMPSTEAD & NORTHERN HIGH COUNTRY
HILL & SUENDER LAKE TERMINAL MC ALLISTER
PUGET SOUND & SNOQUALMIE VALLEY SANTER EXPOSITIONS WAR ASSET ADMINISTRATION
WASATCH MOUNTAIN   WEST SIDE BELT
CANADIAN AND MEXICAN RAILROADS
AMERICAN OF PORTO RICO ATLAMAXAC BLOEDEL STEWART & WELCH LTD.
CABRERA (O.B.) CANADA ATLANTIC CANADIAN FOREST PRODUCTS LTD.
CANADIAN NATIONAL CANADIAN PACIFIC CENTRAL MEXICANO
GLASGOW & CAP BRETON GRAND TRUNK INTEROCEANICO DE MEXICO
JARAGUA IRON CO. (CUBA) MAC MILLAN & BLOEDEL LTD. MAC MILLAN BLOEDEL & POWELL RIVER LTD.
MANATA SUGAR CO (CUBA) MATANZAS (CUBA) MEXICANO
MINERA MEXICANA PENOLES MINERALES & METALES NACIONALES DE MEXICO
NOR-OESTE DE MEXICO TIMBERLAND DEVELOPMENT CO. TORONTO GREY & BRUCE
  TORONTO & NIPISSING