...fe's property), were in flames. He immediately put in operation measures to overtake and destroy the retreating army. McClellan's rear-guard, composed of the divisions of Sedgwick, Richardson, Heintzelman , and Smith, of Franklin's corps, were at Savage's Station, under the general command of Sumner. There they were assailed by a Confederate force under Magruder, who first attacked Sedgwick at about ...