City officers were elected in Janesville, including John Mitchell as mayor.

The evidence

• “City Officers elected April 6, 1864-. — Mayor, John Mitchell; Treasurer, S.”

  1879-history-of-rock-county/14-rock-county-ch08-janesville.md, PDF p. 535 / book p. 539

  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