Here's my partial list. There's more I'm sure but I can't think of them all lol
Lynyrd Skynyrd x 3
Charlie Daniels Band x2
Hank Williams Jr.
Hank III and AssJack
Alice In Chains (wish I could have gotten to see Layne Staley, but alas this was 2009)
Widespread Panic (Check this band out if you like Jam bands)
Alabama (Country I know but still, they're from like 10 minutes from my house)