Miles can probably answer this, but I remember hearing once that back when the South was kind of a battleground region ('70s, '80s, '90s), wasn't the stereotype that the "good ole boys" and native Southerners were Democrats and the strict baptists and Northern transplants were Republicans. Is that true?
There was a good article in Jacobin a while back, I can't find it now where it discusses that there was somewhat of a shift, that prior to the emergence of the two party system in the south the few Republicans tended to be poor whites from say northern Alabama who had a historical animosity to the state's aristocrats yet when the Republicans started emerging in the 60s it was the wealthier counties that were the first converted wheras poorer whites stayed Democrat for a much longer time.