There was no Klan in the 1880's. There was a Klan from the end of the war until the 1870's but that was a disorganized vigilante group and it was suppressed by state governments. Around 1915, Birth of a Nation came out and people started romanticizing the Klan and it reformed. For a good 35 years though, there was no Klan of which to speak. That's not to say there weren't other groups which filled the same niche in that time period, but the Klan itself didn't exist.
By 1930, of course, the KKK had a significant political presence in Indiana, and at this point, white rural Hoosiers hate blacks with the best of them, but I was surprised to learn that that attitude came well after the end of the Civil War.