The Milton Anti-Horse-Thief Association was organized (P217 says "Early in 1860").

The evidence

• “Milton Anti-Horse-Thief Association was organized March 8, 1860, with the following charter members : Joseph Groodrich, John Alexander, William Jones, M. W.”

  1879-history-of-rock-county/16-rock-county-ch10-villages.md, PDF p. 686 / book p. 690

  Butterfield, C. W., et al. The History of Rock County, Wisconsin: its early settlement, growth, development, resources, etc. Chicago: Western Historical Company, 1879. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871585.

  Grade A: Found on a page of one of our sources