...iter of this commanded. The raiders crossed an obscure ford of the Potomac, above Harper's Ferry, General Wade Hampton, with a battery of horse artillery, being in the van, and camped that night at Chambersburg . The next day they passed through Emmettsburg on their return to the Potomac, and, marching all night, early the ensuing day reached White's ford of the Potomac, below Harper's Ferry, having thus m...