...tachment of General Smith's brigade joined in the pursuit of the enemy, to a point within a half-mile of Port Gibson. At a quarter-past six o'clock A. M. when sufficient time had elapsed to allow Osterhaus 's attack to work a diversion in favor of my right, I ordered General Carr to attack the enemy's left. General Benton's brigade promptly moved forward to the right of the main road to Port Gibson. ...