The town of Center was organized by act of the Legislature.

The evidence

• “The town of Center is situated in the northwestern portion of the county, and was organized by act of the Legislature, approved February 17, 1842. It included the present town of Center, and portions of Plymouth, Spring Valley, Magnolia and Janesville, west of Rock River.”

  1879-history-of-rock-county/13-rock-county-ch07-town-histories.md, PDF p. 500 / book p. 504

  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