I know normal is Carolina. I don't know for sure, but I would guess the assumption about where they're from is correct. Most wild types are called Okeetee though.
Huh? No, most wild types are called Carolina - Okeetee is a specifically patterned normal - copied from Ians vivarium: Okeetee A normal phase, from South Carolina. Locality purists class an Okeetee as 'from within the boundary of The Okeetee Hunt Club, South Carolina'. A brightly coloured orange body with orange/red blotches, outlined with a wide black band. Other locality cornsnakes are Alabama, Miami, Keys