Frank Moore, ed. Vol. 5. New York: G. P. Putnam, 1863.
Colonel Switzer, Sixty-second Pennsylvania, in command of his own regiment, with a section of the First New-York artillery, and Griffin's brigade, crossed the Potomac from Maryland into Virginia at Reynold's Ford, below Shepherdstown, Va., and captured over four hundred rifles, mostly marked "London, 1862," and a twelve-pounder rifled brass cannon of English manufacture. The capture was accomplished without firing a shot; the rebel pickets falling back as the Union men advanced.
Timeline of West Virginia: Civil War and Statehood: September 1862