...ld halt until these had all passed. This column occupied about 14 miles of road, and it delayed Longstreet's infantry until 4 P. M. In the morning, Longstreet's orders had been only to go as far as Cashtown , but later orders were sent for all troops to come to Gettysburg. It was now the fourth day since Meade had relieved Hooker. Harper's Ferry had been evacuated. Of its 11,000 troops, 7000 unde...