...wed by the commands of Generals R. H. Anderson, Ewell, and Gordon, with orders to close upon it as fast as the progress of the trains would permit or as they could be directed on roads father west. General Anderson , commanding Pickett's and B. R. Johnson's divisions, became disconnected with Mahone's division, forming the rear of Longstreet. The enemy's cavalry penetrated the line of march through the interva...