Davis is the largest village of Rock Run township. In 1857, when the Western Union Railroad had sun eyed its route through the county, and was making all preparations for the building of the line, it became very evident that a station on its route through Rock Run township was most necessary for the farmers of that district. Samuel Davis, John A. Davis, Thomas J. Turner and Ludwig Stanton, who owned the land in the vicinity of the present village, donated a total of one hundred and sixty acres, which was surveyed and platted for a village site. In 1858 everything was finished and the sale of lots began. That year the railroad was finished through the village, but the train that first sped over the rails was not run until the following year, on the occasion of the state fair, which was held in Freeport in 1859.