...osition from Drury's Bluff on his right, to the Mechanicsville turnpike, with his infantry, the cavalry extending on the left and front to the lower Rappahannock and Fredericksburg. The right wing, D. H. Hill 's and Longstreet's divisions, under Longstreet, from James River to White Oak Swamp; the left under G. W. Smith. Smith's division and Magruder's command from White Oak Swamp, extending thence to th...