Cincinnati Southern Railway was created in 1869.
Cincinnati Railway Tunnel Company was created in 1872.
Tidewater Southern Railway was created in 1912.
Charleston Southern Railway was created in 1915.
Pittsburgh Southern Railway was created in 1879.
Southern Railway Zone was created in 1951.
Norfolk Southern Railway was created in 1990.
Washington Southern Railway was created in 1890.
Montana Southern Railway was created in 1917.
Southern Manitoba Railway was created in 1999.
Columbus Southern Railway was created in 1886.
Columbia Southern Railway was created in 1897.
Abbeville Southern Railway was created in 1892.