The town of Rock was organized into a separate town.

The evidence

• “no town organization followed this "setting oiF." Almost three years elapsed before it was organized. It was then reduced almost to its present proportions ; for the act of the Legislature, approved February 17, 1842, restricted it to " Township 2 north, of Range 12 east, excepting fractional Sections 1 and 2, lying north and west of Rock River," which was " organized into a separate town by the name of Rock." It was also declared that the first election should "be held at the house of Jasper Sears." As the city of Janesville afterward absorbed the whole of " Sections 1 and 2, in Township 2, north of Range 12 east," the town included, as now, the whole of the township just named, except these sections. In fact, therefore, the town of Rock, after the passage of the act providing for its organization, never contained quite thirty-six sections of land, or six miles square.”

  1879-history-of-rock-county/13-rock-county-ch07-town-histories.md, PDF p. 521 / book p. 525

  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