Map of the country between Milliken's Bend, La. and Jackson, Miss. showing the routes followed by the Army of the Tennessee under the command of Maj. Gen. U.S. Grant, U.S. Vls. in its march from Milliken's Bend to rear of Vicksburg in April and May 1863. Compiled, surveyed and drawn under the direction of Lt. Col. J.H. Wilson ... Drawn by Maj. Otto H. Matz ... and 1st Lieut. L. Helmle