• Contours of Union forts on south side of Potomac, 1862 [map].

    This map shows the names and configurations of Union fortifications on the Virginia side of the Potomac River in 1862, and in some cases lists the name of the regiment that built the structure.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Map showing positions of Union and Rebel forces Septr 1861.

    Depicts the area between Lewinsville, in Fairfax County, and Georgetown in the north, and Alexandria in the south. The location of the Loudoun and Hampshire Railroad is also indicated.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Plan of the Rebel attack on Washington, D.C., July 11th and 12th, 1864.

    As a diversionary measure to take some of the pressure off of besieged Petersburg, Confederate forces under Jubal Early launched a northern offensive beginning in late June 1864. After stops near Harper's Ferry and Shepherdstown, W. Va., and Frederick and Baltimore, Md., they reached the outskirts of Washington, D.C., by July 11. Reconnaissance showed the Union had begun some intensive reinforcement, so an attack ...

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1864
  • [Map of Alexandria, Virginia]

    Illustrates Alexandria's central position in the defense of Washington, where at least 12 outlying forts surrounded the city. Military camps of various Union officers such as Samuel Peter Heintzelman are indicated on this map.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Topographical map of Washington, D.C., and vicinity. Showing the Union forts and defences built 1861-3.

    Detail from a printed map of the Potomac River region of Maryland and Virginia, and including Washington, D.C., which Sneden has annotated to show the locations of Union forts and picket lines.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Plan of the Rebel attack on Washington, D.C., 11th & 12th July 1864.

    Map shows the location of Union fortifications around Washington, D.C., and the presence of Confederate forces under Gordon, Ramseur and Rhodes poised on the outskirts of the city.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Union forts on Maryland shore

    Shows the names and configurations of Union fortifications on the Maryland side of the Potomac River in 1862, and in some cases the name of the regiment that built the structure. This appears to be a companion piece to the image on p. 43.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861