An act was approved annexing township 3 north, range 12 east, west of Rock river, to the town of Janesville.

The evidence

• “By section 2 of an act of the territorial legislature, approved April 10, 1843, all of township No. 3, north of range 12 east, lying west of Rock river, was annexed to and made a part of the town of Janesville.”

  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