The following railroads merged to form the Norfolk Southern Railway.
- The Southern Railway changed its name to the Norfolk Southern Railway on December 31, 1990.
- The Norfolk and Western Railway was leased by the Southern Railway on December 31, 1990, and merged into the Southern in 1997.
- The New York, Chicago and St. Louis Railroad (Nickel Plate Road) merged into the Norfolk and Western Railway on October 16, 1964.
- The Wheeling and Lake Erie Railway was leased by the New York, Chicago and St. Louis Railroad on December 1, 1949, and merged into the Norfolk and Western Railway on September 16, 1988.
- The Akron, Canton and Youngstown Railway was leased by the Norfolk and Western Railway on October 16, 1964, and merged January 1, 1982. Its remaining lines were spun off to the new Wheeling and Lake Erie Railway on May 17, 1990.
- The Pittsburgh and West Virginia Railway was leased by the Norfolk and Western Railway on October 16, 1964, but was leased to the new Wheeling and Lake Erie Railway on May 17, 1990.
- The Wabash Railway was leased by the Norfolk and Western Railway October 16, 1964 before becoming a wholly owned subsidiary of the Norfolk & Western in December 1991. In 1997, the Wabash was merged into NS along with its parent, the N&W.
- The Virginian Railway merged into the Norfolk and Western Railway on December 1, 1959.
Other companies:
- Alabama Great Southern Railroad
- Atlanta and Charlotte Air-Line Railway
- Atlantic, Mississippi and Ohio Railroad
- Central of Georgia Railroad
- The Georgia and Florida Railroad merged into the Central of Georgia Railway June 1, 1971.
- The Savannah and Atlanta Railway merged into the Central of Georgia Railway in 1971.
- City Point Railroad
- East Tennessee, Virginia and Georgia Railway
- Georgia Pacific Railway
- Illinois Terminal Railroad
- Lawrenceville Branch Railroad
- Memphis and Charleston Railroad
- Norfolk and Petersburg Railroad
- Norfolk Southern Railway (1942–1982)
- North Carolina Railroad
- North Eastern Railroad (Georgia)
- Orange and Alexandria Railroad
- Piedmont Railway
- Piedmont Air-Line Railway
- Rabun Gap Short Line Railway
- Richmond and Danville Railroad
- Richmond and West Point Terminal Railway and Warehouse Company
- Richmond and York River Railroad
- Shenandoah Valley Railroad
- South Side Railroad
- Virginia and Tennessee Railroad
<imagemap>
Image:Railroadtree.svg|thumb|center|700px|A family tree, so to speak, of Conrail, CSX Transportation, and Norfolk Southern Railway. Links are clickable.
rect 63 654 169 694 CSX Transportation
rect 457 657 566 693 Conrail Shared Assets Operations
rect 783 655 895 691 Norfolk Southern Railway
rect 806 551 871 590 Southern Railway
rect 482 551 533 567 Conrail
rect 369 465 463 501 Lehigh Valley Railroad
rect 565 460 676 494 Erie Lackawanna Railway
rect 61 435 160 470 Seaboard Coast Line
rect 736 400 823 419 Erie Railroad
rect 363 379 463 414 Central Railroad of New Jersey
rect 562 315 668 366 Delaware, Lackawanna and Western Railroad
rect 786 298 894 336 Norfolk & Western Railway
rect 379 293 439 328 Reading Railroad
rect 58 302 160 340 Seaboard Airline Railroad
rect 272 220 329 261 Chessie System
rect 592 214 669 257 Penn Central Transportation Company
rect 774 198 882 217 Wabash Railroad
rect 41 162 150 198 Louisville & Nashville Railroad
rect 346 131 439 165 Western Maryland Railway
rect 513 102 556 150 New York Central
rect 669 101 725 148 Pennsylvania Railroad
rect 772 106 886 155 Nickle Plate Railroad
rect 798 29 860 67 Virginian Railway
rect 600 18 651 74 New York, New Haven & Hartford Railroad
rect 436 31 534 64 Baltimore and Ohio Railroad
rect 270 31 366 66 Chesapeake & Ohio Railway
rect 113 31 205 69 Atlantic Coast Line Railroad
desc bottom-left
</imagemap>
References
- Norfolk Southern merger family tree, Trains link broken (404)
