The oldest photos of Washington DC

 During the Civil War, Capital dome not finished, Washington DC,1863

 The Treasury Department Building under construction, 16 September 1861.
 Civil War victory parade on Pennsylvania Avenue, Washington, D.C., 1865.
 The Inauguration of Abraham Lincoln at the unfinished Capitol, Washington D.C, March 4, 1861.
 Guards examine passes near Georgetown, Washington D.C., on the banks of the Potomac River, during the Civil War in 1865.
 A Civil War Camp near Washington, DC in 1862.
 Washington during the Civil War, 1865.
 Maimed soldiers and others before Office of U.S. Christian Commission, Washington, D.C., April 1865.
 The Capitol building under construction in Washington, DC, ca. 1863.
 The alley behind Ford's Theater, 1865.
US Capitol, Washington, D.C, 1861