...n with the return. The Union forces had been thoroughly aroused, and dispositions had been ordered, intended and calculated to head off the invaders before they could recross the Potomac. Leaving Chambersburg , a march of nearly thirty-two miles brought Stuart and his men to Emmittsburg at about seven o'clock on the evening of the 11th. One hour before their arrival, four companies of the Sixth Pennsylvani...