Old Hickory had been full of small minnows the size of your index finger. You could try stripping a woolly bugger around a size 10 in white, a gummy minnow or a clouser in gray/white.
If you are chasing bluegill and want some fun. They find it hard to resist a popping bug with a small zebra midge or nymph tied off the hook about 18" almost any time of the year.