| LRR |
 |
Lewiston Rail-Road Co. (The) |
|
| LRR |
|
Littlestown Rail Road Co. |
|
| LRr |
|
Lawrence Railroad Co. |
|
| LRr |
|
Louisa Railroad Co. (The) |
|
| LRy |
|
Louisville Railway Co. (Electric) |
|
| L&A |
|
Louisiana & Arkansas Railway Co. |
|
| L&B |
|
Lackawanna and Bloomsburg Railroad Co. (The) |
|
| L&B |
|
Lockport and Buffalo Rail Way Co. (The) |
|
| L&C |
|
Lancaster & Chester Railroad Co. |
|
| L&CCL |
|
Laclede and Creve Coeur Lake Rail Road Co. |
|
| L&CVAL |
|
Leroy and Caney Valley Air Line Rail Road Co. (The) |
|
| L&DM |
|
Leavenworth and Des Moines Railway Co. |
|
| L&HRRr |
|
Lehigh and Hudson River Railroad Co. (The) |
|
| L&HRRy |
Lehigh and Hudson River Railway Co. (The) |
|
| L&H |
|
Lowell and Hastings Rail Road Co. |
|
| L&I |
|
Lafayette and Indianapolis Railroad Co. (The) |
|
| L&L |
|
Lehigh and Luzerne Railroad Co. (The) |
|
| L&LE |
|
Lehigh and Lake Erie Railroad Co. (The) |
|
| L&M |
|
Lehigh and Mahanoy Railroad Co. (The) |
|
| L&M |
|
Lewes and Millsboro Railroad Co. |
|
| L&M |
|
Litchfield & Madison Railway Co. |
|
| L&MR |
|
Louisiana and Missouri River Railroad Co. |
|
| L&N |
|
Louisville and Nashville Railroad Co. |
 |
| L&NE |
|
Lehigh & New England Railroad Co. |
|
| L&NF |
|
Lockport and Niagara Falls Rail-Road Co. |
|
| L&NI |
|
Logansport and Northern Indiana Railroad Co. |
|
| L&PRr |
|
Logansport and Pacific Railroad Co. |
|
| L&PRy |
Logansport and Pacific Railway Co. |
|
| L&PS |
|
London & Port Stanley Railroad Co. |
|
| L&S |
|
Lexington and Southern Railway Co. (The) |
|
| L&S |
|
Luzerne & Susquehanna Railroad Co. |
|
| L&StL |
|
Lexington and St. Louis Railroad Co. |
|
| L&SV |
|
Longview and Sabine Valley Railway Co. |
|
| L&T |
|
Logansport & Toledo Railway Co. |
|
| L&T |
|
Lynchburg and Tennessee Railroad Co. |
|
| L&UM |
|
Lawrenceburg and Upper Mississippi Railroad Co. (The) |
|
| L&V |
|
Liberty and Vienna Railroad Co. |
|
| L&W |
|
Lackawanna and Western Railroad Co. (The) |
|
| L&WV |
|
Lackawanna & Wyoming Valley Railroad Co. |
|
| LA&L |
|
Livonia Avon & Lakeville Railroad Co. |
|
| LA&NW |
|
Leavenworth, Atchison and North Western Railroad Co. (The) |
|
| LA&SL |
|
Los Angeles & Salt Lake Railroad Co. |
|
| LA&SP |
|
Los Angeles and San Pedro Railroad Co. (The) |
|
| LA&T |
|
Louisiana, Arkansas & Texas Railway Co. |
|
| LAE |
|
LouisianA Eastern Railway Co. |
|
| LC |
|
Louisiana Central Railroad Co. of Louisiana (The) |
|
| LC&C |
|
Louisville, Cincinatti & Charleston Rail Road Co. (The) |
|
| LC&F |
|
Logansport, Camden and Frankfort Railroad Co. (The) |
|
| LC&LE |
|
Lick Creek and Lake Erie Railroad Co. |
|
| LC&SW |
|
Logansport, Crawfordsville and South Western Railway Co. |
|
| LCS |
|
Louisiana Central Stem Railway Co. |
|
| LE&DR |
|
Lake Erie & Detroit River Railroad Co. |
|
| LE&L |
|
Lake Erie and Louisville Railroad Co. |
|
| LE&P |
|
Lake Erie and Pacific Railroad Co. |
|
| LE&W |
|
Lake Erie and Western Railroad Co. (The) |
|
| LEE&SW |
|
Lake Erie, Evansville and South Western Railway Co. (The) |
|
| LEW&StL |
|
Lake Erie, Wabash and St. Louis Rail Road Co. (The) |
|
| LF&D |
|
Little Falls and Dolgeville Railroad Co. |
|
| LF&M |
|
La Fayette and Monon Railway Co. (The) |
|
| LG |
|
Liggett's Gap Railroad Co. (The) |
|
| LIRR |
|
Long Island RailRoad Co. |
|
| LL |
|
Lehigh Luzerne Railroad Co. |
|
| LLPX |
|
Locomotive Leasing Partners |
|
| LM |
|
Little Miami Railroad Co. (The) |
|
| LM&OR |
|
Lake Michigan & Ohio River Railway Co. |
|
| LN |
|
Lima Northern Railway Co. (The) |
|
| LNA&C |
|
Louisville, New Albany & Chicago Rail Road Co. |
|
| LNA&C |
Louisville, New Albany & Chicago Railway Co. (Monon Route) |
|
| LNP&W |
|
Laramie-North Park & Western Railroad Co. |
|
| LO |
|
Lake Ontario Rail Road Co. |
|
| LOS |
|
Lake Ontario Shore Rail Road Co. |
|
| LOS |
|
Lake Ontario Southern Railway Co. (The) |
|
| LP&BRr |
|
Logansport, Peoria and Burlington Railroad Co. (The) |
|
| LP&BRy |
|
Logansport, Peoria and Burlington Railway Co. |
|
| LPH&N |
|
LaPorte, Houston and Northern Railroad Co. |
|
| LR&N |
|
Louisiana Railway & Navigation Co. |
|
| LR&S |
|
LauRinburg & Southern Railroad Co. |
|
| LR&T |
|
Lawrence Rail Road and Transportation Co. of Ohio |
|
| LR&T |
Lawrence Railroad and Transportation Co. of Pennsylvania |
|
| LS |
|
Lake Shore Railroad Co. of Western Michigan |
|
| LS |
|
Lake Shore Railway Co. |
|
| LS |
Lake Shore Railway Co. (The) |
|
| LS |
|
Lebanon Springs Rail Road Co. |
|
| LS&BC |
|
La Salle & Bureau County Railroad Co. |
|
| LS&I |
|
Lake Superior and Ishpeming Railroad Co. |
|
| LS&M |
|
Lake Superior & Mississippi Railroad Co. |
|
| LS&MS |
|
Lake Shore and Michigan Southern Railway Co. |
|
| LS&MS |
Lake Shore and Michigan Southern Railway Co. (The) |
|
| LSRC |
|
Lake State Railway Co. |
|
| LST&T |
|
Lake Superior Terminal & Transfert Railway Co. |
|
| LT |
|
Lake Terminal Railroad Co. |
|
| LTM&B |
|
Leadville, Ten Mile and Breckenridge Railway Co. (The) |
|
| LVRr |
|
Lehigh Valley Railroad Co. |
|
| LVRy |
|
Lehigh Valley Railway Co. (The) |
|
| LVHT |
|
Lehigh Valley Harbor Terminal Railway Co. |
|
| LVT |
|
Lehigh Valley Terminal Railway Co. |
|
| LWE |
|
Louisiana Western Extension Railroad Co. |
|
| LXOH |
|
Lexington & Ohio Railroad Co. |
|