...on was especially propitious, for Heintzelman's corps, that had been designated as part of the rear-guard with Sumner and Franklin, through some misconception had marched over the swamp, to camp near Charles City crossroads, leaving easy work for Jackson and Magruder. When, on the forenoon of the 30th, Jackson found his way across the swamp blocked by Franklin, he had time to march to the head of and acr...