• Revised plan of battle of Malvern Hill, July 1st, 1862 (official).

    Details the action of July 1, 1862, with most of the major Confederate forces under the command of Stonewall Jackson, D. H. Hill, and Magruder, identified in their location north of Malvern Hill, and all the Union troops due south of the Confederates, notably including Berdan's sharpshooters and the troops of Heintzelman, under whom Sneden served, Couch, Morell, and others.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Route from Manassas to Centreville, August 28th to 31st.

    Depicts the path General Samuel Heintzelman took during August 23rd to 31st from Manassas Junction in Prince William County, Va., traveling toward Centreville in Fairfax County, Va., directly before and during the Second Battle of Manassas or Bull Run.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Plan of 2nd battle of Bull Run, Va. : Shewing movements of troops from 27 Aug. to Sept. 1.

    Shows the movement of troops in a three county area extending from Warrenton, Va., in Fauquier County through Manassas, Va., in Prince William County, ending to the east around Centreville and Fairfax, Va., in Fairfax County, during the Second Battle of Manassas or Bull Run.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • [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
  • Harrison's Landing, Va. : Showing Union line of defence [sic].

    Shows the location at Harrison's Landing, along the James River, of the camps of the U.S. Army of the Potomac after the Seven Days' Battles, 25 June-1 July 1862. Includes Berkeley and Westover plantations in Charles City County, Va.

    • Contributor: Sneden, Robert Knox
    • Original Format: Maps
    • Date: 1861
  • Map shewing [sic] march of the [U.S.] Army from Harrison's Landing or Westover to Williamsburg, Virginia, 15th, 16th, 17th and 18th August.

    Illustrates the path McClellan's troops took in August 1862 after their July encampment at Harrison's Landing ended. The 1st Corps under Fitz-John Porter, the 6th Corps under Sedgwick, and the 4th Corps under Keyes are shown traveling due east from Charles City Courthouse across the Chickahominy River toward Williamsburg while the 3rd Corps under Heintzelman travels on a northeastern route from Charles City Courthouse ...

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