Now here's a fascinating historical record. This is Flannery O'Connor herself, reading A Good Man Is Hard To Find, probably her most famous short story, and one of her famous essays on Southern literature and the grotesque. This is actually the essay I've quoted before, here and here. It sounds as barking mad as it reads.
She has pretty much the voice I expected - perhaps a little softer and younger, but with that rich, fascinating southern accent. It definitely adds something to A Good man.