Timothy B. Smith teaches history at the University of Tennessee at Martin. His many books include, most recently, The Union Assaults at Vicksburg: Grant Attacks Pemberton, May 17-22, 1863; Grant Invades Tennessee: The 1862 Battles for Forts Henry and Donelson; Corinth 1862: Siege, Battle, Occupation; and Shiloh: Conquer or Perish, all published by Kansas.