A time correction if I may. Grant's first Vicksburg Campaign began in December 1862 with he taking troops south from northern Mississippi towards Jackson while Sherman took troops via the river to Chickasaw Bluffs. Sherman was rebuffed at the latter place and Earl Van Dorn's raid on Holly Springs and Forrest's raid in west Tennessee destroyed Grant's supply line. These raids forced Grant to fall back and plan a water route for 1863.

Greg Biggs