Question: What do the members of this tribe, for which this 20,000 people (as of 2010) Kansas county is named after, call themselves?
Sentence (from "Potawatomi"): The Pottawatomi , also spelled Pottawatomie and Potawatomi (among many variations), are a Native American people of the Great Plains, upper Mississippi River and Western Great Lakes region.
Relevant evidence: No