Cavalry Major Isaiah Stillman (1793–15 April 1861) led Illinois militia in the first armed confrontation of the Black Hawk War against Black Hawk's Sauk Indian Band. The first armed confrontation would be named Battle of Old Man's Creek, but would later be named Stillman's Run. He died in Kingston, Peoria County, on April 15, 1861, at the age of 67. He is buried in Peoria.