...ble tents. The army had already been divided into four corps, commanded, respectively, by Generals McDowell, Sumner, Heintzelman, and Keyes, but at the last moment McDowell had been detached by President Lincoln . The van was led by General Hamilton's division of the Third Corps. On the afternoon of the second day the first transports entered Chesapeake Bay. In the shadowy distance, low against the sky-...