...he Potomac, occupied only by horsemen, directed the Stonewall Brigade, under Colonel Grigsby, to seize it. This was done without much difficulty; and the hill was at once crowned by the batteries of Poague and Carpenter. On his right, a similar operation, of still greater importance, was happily effected by General A. P. Hill. Perceiving an elevated piece of ground, (whence the Federal position alo...