Description: In an effort to relieve Union forces besieged in Chattanooga, Maj. Gen. George H. Thomas and Maj. Gen. Ulysses S. Grant initiated the “Cracker Line Operation” on October 26, 1863. This operation required the opening of the road to Chattanooga from Brown’s Ferry on the Tennessee River with a simultaneous advance up Lookout Valley, securing the Kelley’s Ferry Road. Union Chief Engineer, Military Division of the Mississippi, Brig. Ge...