1 | M&BT | Marianna & Blountstown R.R. | 7/1923-1/1950 | | NAKINA |
2 | M&BT | Marianna & Blountstown R.R. | Apr-38 | | NRHS |
3 | M&BT | MARIANNA & BLOUNTSTOWN RAILROAD | | | PWRC |
4 | M&K | Morgantown & Kingwood R.R. (Baltimore & Ohio R.R.) | 7/1923 | | NAKINA |
5 | M&K | Morgantown & Kingwood R.R. | 8/1920 | | NAKINA |
6 | M&K | BALTIMORE & OHIO RAILROAD [MORGANTOWN & KINGWOOD RAILROAD] | | | PWRC |
7 | M&LS | Manistique & Lake Superior R.R. | 7/1930-7/1936 | | NAKINA |
8 | M&LS | MANISTIQUE & LAKE SUPERIOR RAILROAD | | | PWRC |
9 | M&M | Meridian and Memphis Ry. Co. (Gulf, Mobile and Northern R.R. Co.) | 8/1920-7/1923 | | NAKINA |
10 | M&M | GULF, MOBILE & NORTHERN RAILROAD CO. [MERIDIAN & MEMPHIS RWY. CO.] | | | PWRC |
11 | M&NA | Missouri & Northern Arkansas Ry. Co. | 7/1923-4/1938 | | NAKINA |
12 | M&NA | Missouri & Northern Arkansas R.R. | 8/1920 | | NAKINA |
13 | M&NA | Missouri & Northern Arkansas Ry. Co. | Apr-38 | | NRHS |
14 | M&NA | MISSOURI & NORTH ARKANSAS RWY. CO. | | | PWRC |
15 | M&NE | Manistee & Northeastern Ry. Co. | 7/1930-7/1954 | | NAKINA |
16 | M&NE | Manistee & Northeastern R.R. Co. | 8/1920-7/1923 | | NAKINA |
17 | M&NE | Manistee & Northeastern Ry. Co. | 4/38-1/52 | | NRHS |
18 | M&NE | MANISTEE & NORTHEASTERN RY. CO. | | | PWRC |
19 | M&PA | Maryland & Pennsylvania R.R. Co. | 4/1970 | | NAKINA |
20 | M&PA | Maryland & Pennsylvania R.R. (Co.) | 8/1920-10/1966 | | NAKINA |
21 | M&PA | Maryland & Pennsylvania R.R. | 4/38-10/66 | | NRHS |
22 | M&PA | Maryland & Pennsylvania R.R. Co. | Apr-70 | | NRHS |
23 | M&PA | MARYLAND & PENNSYLVANIA RAILROAD CO. | | | PWRC |
24 | M&RR | Minneapolis & Rainy River Ry. Co. | 8/1920-7/1932 | | NAKINA |
25 | M&RR | MINNEAPOLIS & RAINY RIVER RWY. CO. | | | PWRC |
26 | M&STL | MINNEAPOLIS & ST. LOUIS | | | PWRC |
27 | M&U | Middletown & Unionville R.R. | 8/1920-7/1936; 1/1941-1/1946 | | NAKINA |
28 | M&U | MIDDLETOWN & UNIONVILLE RAILROAD | | | PWRC |
29 | M&W | Morgantown & Wheeling Ry. Co. | 7/1923 | | NAKINA |
30 | M&W | MORGANTOWN & WHEELING RWY. CO. | | | PWRC |
31 | M&WR | Montpelier & Wells River R.R. | 7/1930-1/1941 | | NAKINA |
32 | M&WR | Montpelier & Wells River R.R. (Boston & Maine R.R.) | 8/1920-7/1923 | | NAKINA |
33 | M&WR | Montpelier and Wells River R.R. | Apr-38 | | NRHS |
34 | M&WR | BOSTON & MAINE RAILROAD [MOHTPELIER & WELLS RIVER RAILROAD] | | | PWRC |