A sketch's subject went to Colorado as a member of the Original Chicago Mining Co.

The evidence

• “R. R., where he was employed two years ; in the spring of 1859, went to Colorado as a member of the Original Chicago Mining Co., which engaged in mining on what was then called Chicago Creek ; in the fall, returned to Chicago; thence went to Canada, where he remained six months in the distillery business; then removed to St. Louis, where he was for a time engaged in the marble and slate business ; afterward, for a short time a resident of Lexington, Ky. ; then came to Wisconsin.”

  1879-history-of-rock-county/17-bios-janesville.md, PDF p. 705 / book p. 709

  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