If you are related to an Abe from that area and/or have relatives buried in the Abe cemetary, I guarantee my Dad (Ronald Garland Abe, son of Harvey Eugene Abe) will want to talk to you.
He's traced the name back to Germany and been there a few times and got more info. He also knows about the Indian heritage you mentioned and the name Flood and Fletterman(sp?).
Let me know if you'd like his email address.
Robert Abe
facebook.bob.abe@gmail.com