... only on the assumption that he would certainly be up during the night, of which neither of us doubted. We knew that Longstreet had been at Chambersburg when Gen. Lee had sent the order to Ewell at Carlisle for the concentration of the army, and that Ewell had then sent it to me at York, with the information that the Federal army had crossed the Potomac and was moving north. York is thirty-two miles f...