What's Wrong with the World by GK Chesterton (He was English but it's related, I think, to the Southern way of life)
Fighting for the Confederacy and Military Memoirs of a Confederate by Edward Porter Alexander.
Furl that Banner: The Life of Abram J. Ryan, Poet-priest of the South by David O'Connell.
Gone With the Wind, of course. Even though I haven't read it.