Nothing. But Hillbillies and farm folk from Kansas are rather different. The accents were a little weird. And there's a lotta variation in "hillbillies".
That said, most of the bits aside from the accent were simply older parents bits - a return to the idea that the Kents were at the upper end...
Fair enough. Though my memory of that period was everyone was still trying to figure things out...
Agreed on the original stuff. Shame about Periphery.
It was. Some of the material started to get updated in the early 3e days, but so far as I know their only releases were just PDFized stuff that existed.
Another add-on:
Renegade Legion