... On our bank Burnside's officers of artillery posted a battery of twenty-pounder Parrotts and another of smaller guns, covering the highest knoll, hoping for unusual execution. Crook's brigade of Scammon 's division stretched upstream to the right, with Sturgis's division formed in his rear. Rodman's division, with Hugh Ewing's brigade behind it, extended down the Antietam. Pleasonton, commanding ...