2009-08-212009-08-211861-05-181995-09-1100000004_1sc3https://hdl.handle.net/1920/5409en-USArtilleryBridgeCivil WarHarper's WeeklyVirginiaWashington (D.C.)The Long Bridge Leading Across the Potomac from Washington to Virginia, Guarded by United States ArtilleryImageUnion Guards