Remember the Whitewater scandal? I got to digging into things and discovered that the Jayhawk War had already been played out before the Kansas/Nebraska problem, and Marion County in the far North along the Missouri state line had a countyseat named Yellville, exactly the same as Marion County, Indiana (before Indianapolis was founded). The area was settled by people from Indiana interested in keeping slavery out of what would otherwise be an integral part of the Bean Belt!
The pattern was repeated all over the state with various settlements made as part of political colonization activity by people in pro- or anti-slavery states or regions in the Eastern United States.
I'm curious what you mean by this. The term originated in the free-state militias of "bleeding Kansas," which was a direct result of the Kansas-Nebraska Act.
I agree that Arkansas is a bit of a problem no matter how you approach the matter. Are you referencing Governors Flanigan and Murphy?
I also see Missouri as a bit of a problem no matter how you approach the matter.