Fredericksburg & Potomac Railroad Richmond, Fredericksburg & Potomac (TrainWeb) Railroad History Database Corporate Genealogy - Richmond, Fredericksburg and Potomac Corporate Genealogy - Washington Southern Mileposts from CSX Transportation Timetables Defunct Washington, D.C., railroads Defunct Virginia railroads Atlantic Coast Line Railroad Southern Railway (U.S.) Seaboard Air Line Railroad Chesapeake and Ohio Railway Predecessors of CSX Transportation Former Class I railroads in the United States Standard gauge railways in the United States Transportation in Arlington County, Virginia Companies affiliated with the Pennsylvania Railroad Companies affiliated with the Baltimore and Ohio Railroad Railway companies established in 1834 Railway companies disestablished in 1991 1834 establishments in Virginia 1991 disestablishments in the United States American companies established in 1834