Uncle Jesse, the minimum legal size for keeping crappie in TN is 10". I suspect that would be hard to come by in a pond overrrun with stunted fish.
BTW, Rio Vista, a string of catfish joints in the Atlanta/Marietta area, had the best hushpuppies I've ever eaten. I spent three of my formative years in Marietta back before it was part of Hotlanta and when the Big Chicken was still fairly new.