The Nine Nations seem to have more economic ties than cultural ties and probably reflects more of today than history. I think a better reference for cultural may be Albion’s Seed, Four British Folkways in America by David Hackett Fischer. It was about the four migrations during the Colonial period (East Anglia Puritans to New England, Southern English Cavaliers to Virginia, Midland Quakers to the Delaware Valley and North Brits, north Irish, Scots lowlanders to the back countries). Each section discussed cultural differences from these four distinct regions of England and how they influenced America. Fascinating read. It certainly explains the Illinois differences being discussed. Indiana is similar to Illinois in that the southern half was inhabited by settlers moving in from Virginia through Kentucky and the northern half by settlers migrating across from New York and Pennsylvania through Ohio. I am an offshoot of both those principle migrations as my maternal side came across Ohio and settled in Ft. Wayne and my fraternal side came from Kentucky via Virginia. My parents definitely came from different food cultures.