...Moore, of his staff, who had gone out with Birney to see the attack upon Jackson, came hurriedly to me with an order from General Hooker for my reserve brigade, Barlow's. Major Howard rode rapidly to Sickles , that he might point out exactly where to locate the brigade. The major was also to ascertain the nearest route, so as to save time and not weary the men by a circuitous march. It was already p...