December 13, 1862. On this ridge, called Marye's Heights, blazed the cannon of Col. J.B. Walton's Louisiana battalion, the Washington Artillery. Late in the day, out of ammunition, it yielded the post to Col. E.P. Alexander's Reserve Artillery. Gen. Robert Ransom's North Carolina infantrymen supported the guns and reinforced Cobb's Georgians and Kershaw's South Carolinians in the Sunken Road below. The open field of attack was raked "as with a fine-tooth comb," Alexander assured corps commander James Longstreet, "A chicken could not live on that field."