Chase County was named after Champion S. Chase, who served as mayor of Omaha for seven years and was Nebraska’s first Attorney General. This seems to me to be a weak name for a county. Maybe they should have named it “Champion County” instead, then they could have perhaps have all the Jackmans from Grant move to their county and had a completely different future.
Chase County was separated from Hayes County by the Nebraska legislature on February 27, 1873, although the county was not organized until 1886.
Check this from Wikipedia:
It was once said that, excluding ranch owners, their wives, and their cooks, at the time Chase County was organized it was populated entirely by cowboys.