List of Washington, D.C., railroads

Columns: Name | System | From | To | Successor
Penn Central Transportation Company | 1968 | 1976 | Consolidated Rail Corporation | Pennsylvania Railroad | PRR | 1918 | 1968 | Penn Central Transportation Company | Philadelphia , Baltimore and Washington Railroad | PRR | 1902 | 1976 | Consolidated Rail Corporation | Philadelphia , Wilmington and Baltimore Railroad | PRR | 1891 | 1902 | Philadelphia , Baltimore and Washington Railroad | Richmond and Danville Railroad | SOU | 1886 | 1894 | Southern Railway | Richmond , Fredericksburg and Potomac Railroad | RF & P | 1920 | 1991 | Richmond , Fredericksburg and Potomac Railway | Southern Railway | SOU | 1894 | 1990 | Norfolk Southern Railway | Southern Maryland Railroad | 1882 | 1886 | Washington and Potomac Railroad | Virginia Midland Railway | SOU | 1880 | 1886 | Richmond and Danville Railroad

Example questions:
When did the American railroad of southern Maryland and Washington , D.C. built in the 19th century open ? | When did the railroad also called the Washington , Brandywine & Point Lookout Railroad close ? | When did the Washington , DC railroad on a system that stretched about 113 miles open ? | When did the oldest railroad in the United States close ? | What was the successor of the railroad led by industrialist Collis P. Huntington ?

Answers:
1935 | 1886 | 1872 | 1987 | CSX Transportation