...lker's brigades will constitute the second column, of which Walker's brigade will be the advance, and will rendezvous at a point hereafter to be designated. Fagan's brigade will march on the lower Little Rock road. . . . Neither Tappan's, Cooper's, Cabell's nor Frost's brigade was engaged in the attack on Helena. General Holmes, who now assumed command in the field, had hitherto remained at headqu...