...eights; J. G. Walker's division to recross at Cheek's Ford and occupy Loudoun Heights, these heights overlooking the positions of the garrison of Harper's Ferry; D. H. Hill's division to march by the National road over South Mountain at Turner's Gap, and halt at the western base, to guard trains, intercept fugitives from Harper's Ferry, and support the cavalry, if needed; the cavalry to face the enemy and...