My grandmother was born in (and has never left) rural Tennessee. So pretty close. It may be the use of "mama" and "daddy" that makes you think of the deep south. It seems like people of the deep south always call their parents those names no matter how old they are, whereas the other cultures transition to "mom" and "dad" as they approach adulthood. Although maybe Kentucky isn't even considered part of the deep south...I don't know, never been.