The Farmers' Mill was built near West Milwaukee street, Janesville; passages credit it to Eli Jones and to Andrew B. Johns.

The evidence

• “In 1848 the "Farmers Mil!" was built by Mr. Eli Jones, and afterward sold to Jackman & Smith.”

  1856-history-of-rock-county/25-city-of-janesville.md, PDF p. 188 / book p. 170

  Guernsey, Orrin, and Josiah F. Willard, editors. History of Rock County, and Transactions of the Rock County Agricultural Society and Mechanics' Institute. Janesville, Wis.: William M. Doty & Brother, 1856. Cornell University Library via the Internet Archive, archive.org/details/cu31924028871593.

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

  

• “Farmers' Mill. — Andrew B. Johns erected the Farmers' Mill in 1848, on the south side of West Milwaukee street, nesjr the bridge, and, within a year, the property fell into the hands of T. H.”

  1879-history-of-rock-county/14-rock-county-ch08-janesville.md, PDF p. 558 / book p. 562

  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