War Times Journal
War Times Journal: Memoirs: William T. Sherman
Several chapters taken from General Sherman's memoirs covering the Battle of Shiloh in April 1862. He provides a leadership view of the actions of General Ulysses S. Grant before, during and after the battle.
Curated OER
National Park Service: Shiloh National Military Park
This section of the National Park Service's site about Shiloh National Military Park gives information about the battle itself and maps of the troop movements.
Other
Abraham Lincoln's White House: Henry Halleck (1815 1872)
Henry Halleck had brains, but had trouble putting his ideas to work. This very readable biography discusses his military career during the Civil War.
Legends of America
Legends of America: William Quantrill Renegade Leader of the Civil War
A comprehensive look at the bloodthirsty Confederate raider, William Quantrill, and his raiders as they terrorized the trans-Mississippi West in the name of the Confederacy.