[motzman]

Not Massachusetts

"Fort Springfield was the site of a Civil War battle, suggesting it's in the southeast quadrant of the USA. The architecture at the fort suggests it's more of the type of Great Plains fort used in wars against American Indians. It was a Union fort since its troops wore blue."

Plus, Homer yells at Sideshow Bob, "Go back to Massachusetts, pinko!"

Plus, Flanders talks about people "back east"

Plus, there is no "Shelbyville" in Mass.

[BlueMondaySkipper]

I thought I read somewhere they they picked Springfield because every state has a town by that (or containing that) name.