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| 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 | ||||