Aw geez @viridian, why didn’t "TNTDODD" come to mind! Robbie Robertson says he wrote the song for Levon, using all the stories about the South that Helm had been telling the other members of The Hawks/The Band over the years. They were all Canadian, Levon being born and raised in Arkansas. Gee, I wonder if casting The Confederacy in a positive light would be allowed now? ;-)
Another good songwriter who has written about the South is Randy Newman. In fact his Good Old Boys is a "theme" album (I prefer that term to "concept"), all the songs relating to the South in one way or another. "Kingfish" and "Every Man A King" might qualify for the topic of this thread.