Drawing shows the Chain Bridge spanning the Potomac River at Georgetown, Washington, D.C., with a covered wagon on the bridge; also shows men loading a boat with barrels from a loading dock at left center, with... more
Topographic map surveyed in strips along the railroad routes. Shows property owners and covers an area between the Shenandoah and Potomac Rivers to Winchester. Includes table showing "a summary of the routes su... more
Map of the northeastern United States showing drainage, relief by hachures, important cities, the existing railroads, turnpike roads, canals, and the projected railroads; a statement below the title explains th... more
Outline map of western Maryland showing drainage, major roads, cities, and the Baltimore and Ohio Railroad and Canal. A shaded area indicates the coal field.
Sketch shows side-view portraits of a white seaman and an African American man aboard the steamboat that Wallis took from Washington, DC to Aquia Creek, Virginia. Wallis was a British Commissioner from the Fore... more
Sketch shows the Potomac River in Virginia looking up towards Washington, probably from a boat. The city is not visible. Wallis was a British Commissioner from the Foreign Office to the United States in 1853.
Sketch shows ships docked on the waterfront of Alexandria, Virginia, with Washington's Capitol dome rising in the distance. Wallis was a British Commissioner from the Foreign Office to the United States in 1853.
Head-and-shoulders portrait sketch shows a clergyman wearing glasses, facing toward the left. Wallis was a British Commissioner from the Foreign Office to the United States in 1853.
Concerns Union and Confederate pickets positioned north and south around Pohick Church and Accotink in Fairfax County, Va., in January 1862. Includes a balloon pictured near Pohick Church and labelled as "Decr... more
Photograph shows an aerial view of Georgetown rooftops and backyard gardens, the Potomac River, and Mason's Island, now known as Theodore Roosevelt Island, Washington, D.C.
Photograph showing a railroad bridge across the Potomac River. Three men are seated at right: S. Seymour, chief engineer, C.B. Morse, constructing engineer, S.S. Post & Co., contractors.
Regional map of the lower Potomac River in Virginia, including Alexandria and Fairfax Court House. The Loudoun & Hampshire Railroad is also indicated.