Also, Chicago is HELL of Midwestern and I've never seen a silo or a cornfield there.
In re: Northwestern:
"Northwestern University is a private institution founded in 1851 to serve the Northwest Territory, an area that now includes the states of Ohio, Indiana, Illinois, Michigan, Wisconsin, and part of Minnesota. In 1853 the founders purchased a 379-acre tract of land on the shore of Lake Michigan 12 miles north of Chicago. They established a campus and developed the land near it, naming the surrounding town Evanston in honor of one of the University's founders, John Evans. After completing its first building in 1855, Northwestern began classes that fall with two faculty members and 10 students."(
http://www.northwestern.edu/about/facts/)
The biggest argument I see in this thread is that Paul wants a little more literal interpretation of what is North, South, East, and West without the need to check against historical artifact place names, and culture, while others want to apply those filters to the information.
I think "Southern" is a culture which is why "Southern" states don't include Florida - or Texas, Arizona, New Mexico. All are pretty far south but hardly "Southern".