Prior to this date Rock and Walworth counties constituted one election district; the territorial legislature of 1845 passed an act dividing the district and constituting Rock County an election district.

The evidence

• “Prior to February 24, 1845, the counties of Rock and Walworth constituted one election district. The territorial legislature of 1845 passed an act dividing the election district and constituting Rock county an election district with authority to elect one member of the council and three members of the house of representatives.”

  1908-brown-rock-county/05-historic-evolution.md, Vol. 1, PDF p. 136 / book p. 122

  Brown, William Fiske, editor. Rock County, Wisconsin: A New History of Its Cities, Villages, Towns, Citizens and Varied Interests, from the Earliest Times, Up to Date. Chicago: C. F. Cooper & Co., 1908. 2 vols. archive.org/details/rockcountywiscon01brow, archive.org/details/rockcountywiscon02brow.

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