Who were the few R voters in the Deep South until 1944?

[ElectionsGuy]

Pro-business, more upper class, urbanites and suburbanites, and also immigrants, though that's largely a phenomena at the end of the time period in question. Another answer is black voters, even though their vote was largely suppressed by the end of the 19th century. Republican voters were also disproportionately Appalachian. Eastern Tennessee and Kentucky, Western North Carolina, Virginia, and northern Georgia and Alabama. People in the mountains never experienced slavery, they never experienced the same economic system that people in the lowland did. I imagine they were still very racist, but they valued individualism a bit more.