Frank Moore, ed. Vol. 5. New York: G. P. Putnam, 1863.
A reconnoitring [sic] party of Union troops, consisting of the Sixth United States cavalry, supported by two guns of Robertson's battery, left Bolivar Heights, near Harper's Ferry, and proceeded to Halltown, Va., driving the rebel pickets before them. When near Charlestown, the Union advance came upon a force of rebels, and a short skirmish ensued, resulting in the flight of the latter. Soon afterwards the rebels commenced throwing shells, but the Union forces, having positive orders not to bring on a general engagement, withdrew after having obtained the desired information.
Timeline of West Virginia: Civil War and Statehood: October 1862