| MRR |
 |
Mineral Rail Road Co. (The) |
|
| MRr |
|
Marginal Railroad (Unincorporated Co.) |
|
| MRr |
|
Marysville Railroad Co. (The) |
|
| MRy |
|
Manufacturers Railway Co. (The) |
|
| MRy |
|
Marion Railway Corp. |
|
| M&A |
|
Missouri & Arkansas Railway Co. |
|
| M&A |
|
Mohawk and Adirondack Railroad Co. |
|
| M&B |
|
Madison and Beloit Railroad Co. |
|
| M&C |
|
Marietta and Cincinnati Rail Road Co. |
|
| M&C |
|
Milwaukee and Chicago Railroad Co. (The) |
|
| M&CRr |
|
Middletown and Cincinnati Railroad Co. (The) |
|
| M&CRy |
|
Middletown and Cincinnati Railway Co. (The) |
|
| M&CC |
|
Mifflin and Centre County Railroad Co. |
|
| M&D |
|
Maryland and Delaware Rail Road Co. |
|
| M&E |
|
Marion & Eastern Railroad Co. |
|
| M&E |
|
Montgomery & Erie Railway Co. (The) |
|
| M&E |
|
Morristown & Erie Railroad Co. |
|
| M&G |
|
Mobile & Gulf Railroad Co. |
|
| M&H |
|
Mohawk and Hudson Rail Road Co. |
|
| M&I |
|
Madison and Indianapolis Railroad (Unincorporated Co.) |
|
| M&I |
|
Madison and Indianapolis Railroad Co. |
|
| M&L |
|
Marion and Logansport Railroad Co. |
|
| M&M |
|
Milwaukee and Madison Railway Co. |
|
| M&M |
|
Mohawk and Malone Railway Co. (The) |
|
| M&MV |
|
Marion and Mississinewa Valley Railroad Co. (The) |
|
| M&N-ERr |
|
Manistee & North-Eastern Railroad Co. |
|
| M&N-ERy |
|
Manistee & North-Eastern Railway Co. |
|
| M&NA |
|
Missouri & North Arkansas Railroad Co. |
|
| M&NW |
|
Midland & NorthWestern Railway Co. |
|
| M&NW |
|
Milwaukee and NorthWestern Railway Co. |
|
| M&O |
|
Manchester & Oneida Railroad Co. |
|
| M&O |
|
Mobile and Ohio Rail Road Co. (The) |
|
| M&P |
|
Marietta and Pittsburgh Rail Road Co. (The) |
|
| M&P |
|
Minnesota & Pacific Railroad Co. |
|
| M&RRJ |
|
Mississippi and Rock River Junction Railroad Co. (The) |
|
| M&SL |
|
Marquette and State Line Rail Road Co. |
|
| M&STC |
|
Minneapolis & St. Cloud Railroad Co. |
|
| M&STL |
|
Malone & St. Lawrence Railway Co. |
|
| M&STLRr |
|
Minneapolis & St. Louis Railroad Co. (Peoria Gateway) |
|
| M&STLRy |
|
Minneapolis & St. Louis Railway Co. (Peoria Gateway) |
|
| M&STP |
|
Milwaukee & St. Paul Railway Co. |
|
| M&W |
|
Mississipi & Wabash Railroad Co. |
|
| MA&PA |
|
MAryland & PennsylvanniA Railroad Co. |
|
| MC (MEC) |
|
Maine Central Railroad Co. |
|
| MC |
|
Michigan Central Railroad Co. (The) |
|
| MC |
|
Middle Creek Railroad Co. |
|
| MC |
|
Mississipi Central Rail-Road Co. |
|
| MC |
|
Mill Creek Railroad Co. |
|
| MCCR |
|
Mac Cloud River Railroad Co. |
|
| MCK&B |
|
Mac Keesport and Bessemer Rail Road Co. (The) |
|
| MC&LMRR |
|
Mansfield, Coldwater and Lake Michigan Rail Road Co. |
|
| MC&LMRy |
|
Mansfield, Coldwater and Lake Michigan Railway Co. |
|
| MD&W |
|
Minnesota, Dakota & Western Railway Co. |
|
| ME&W |
|
Minden East & West Railroad Co. |
|
| MEP&P |
|
Memphis, El Paso & Pacific Railroad Co. |
|
| MF |
|
Mahopac Falls Railroad Co. (The) |
|
| MGARr |
|
Monongahela Railroad Co. (The) |
|
| MGARy |
|
Monongahela Railway Co. (The) |
|
| MGR&I |
|
Muskegon, Grand Rapids and Indiana Rail Road Co. (The) |
|
| MH |
|
Mine Hill Railroad Co. |
|
| MHM |
|
Mount Hope Mineral Railroad Co. |
|
| M-I |
|
Missouri-Illinois Railroad Co. |
|
| MI&P |
|
Madison, Indianapolis and Peru Railroad Co. |
|
| MJ |
|
Manufacturers Junction Railway Co. |
|
| MJ&KC |
|
Mobile, Jackson and Kansas City Railroad Co. |
|
| MK&T |
|
Missouri, Kansas and Texas Railway Co. (KATY) |
|
| MK&T |
|
Missouri, Kansas & Texas Railway Co. of Texas |
|
| MK&TE |
|
Missouri, Kansas and Texas Extension Railway Co. |
|
| M-K-T |
|
Missouri-Kansas-Texas Railroad Co. (KATY) |
|
| M-K-T |
|
Missouri-Kansas-Texas Railroad Co. of Texas |
|
| MM |
|
Maryland Midland Railway Co. |
|
| MN |
|
Minnesota Northern Railroad Co. |
|
| MN&S |
|
Minneapolis, Northfield & Southern Railway Co. |
|
| MONON |
|
Monon Railroad Co. (The Hoosier Line) |
|
| MPRr |
|
Missouri Pacific Railroad Co. (MOPAC) |
 |
| MPRy |
|
Missouri Pacific Railway Co. (MOPAC) |
| MP&C |
|
Marietta, Pittsburgh and Cleveland Railway Co. |
|
| MP&P |
|
Moss Point & Pascagoula Railroad Co. |
|
| MR&SR |
|
Monongahela River and Streets Run Rail Road Co. |
|
| MS |
|
Michigan Southern Rail Road Co. (The) |
|
| MS&NI |
|
Michigan Southern and Northern Indiana Rail Road Co. (The) |
|
| MSTP&SSTMRr |
|
Minneapolis, St. Paul & Sault Ste Marie Railroad Co. |
|
| MSTP&SSTMRy |
|
Minneapolis, St. Paul & Sault Ste Marie Railway Co. |
|
| MT&SP |
|
Marshall, Timpson and Sabine Pass Railway Co. |
|
| MV |
|
Miami Valley Railway Co. |
|
| MV |
|
Midland Valley Railroad Co. |
|
| MV |
|
Mohawk Valley Rail Road Co. |
|
| MV |
|
Mohawk Valley Rail Road Co. (The) |
|
| MV |
|
Monongahela Valley Railroad Co. |
|
| MV&N |
|
Mohawk Valley and Northern Railway Co. (The) |
|
| MVNG |
|
Miami Valley Narrow Gauge Railway Co. (The) |
|
Logos are the property of their respective Companies.
Les logos sont la propriété de leurs Sociétés respectives.