The Bower City Mills were built in Janesville by McChesney, with two runs of stone.

The evidence

• “AY. Spencer, with two runs of stone ; the Bower City Mills, built during 1859 by McChesney, with two runs of stone, and the big mill standing at the west end of the Milwaukee Street bridge, with six runs of stone.”

  1908-brown-rock-county/26-history-of-janesville.md, Vol. 2, PDF p. 44 / book p. 557

  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