From Deadlands:
A good starting point, however I believe it's historically inaccurate, even though it's an alternative universe. Many of these states didn't exist until the 1890s (Deadlands is set in the 1870s and '80s) and my guess is that had the Confederacy won its independence, the process of territories becoming states (of either the North or South) would have been slowed down.
I like the idea of the land in the game we're creating to be disputed land, or at the very least unclaimed land. Wide open frontier full of mystery and danger.
