A starch factory was established by Ogilbie & De Roe in Janesville.

The evidence

• “The Hodson Mill. — A starch factory was established in 1847 by Ogilbie & De Roe, on the present site of the Hodson flouring-mill. A precarious career, lasting two years, brought it to an unfortunate termination.”

  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