John R. Reigart came to Rock County.

The evidence

• “JOHN R. REIGART, banker; came to Rock Co. in 1857. For several years he devoted his attention to the financial affairs of his father, who was a resident of Pennsylvania but largely interested in Western investments.”

  1879-history-of-rock-county/18-bios-beloit.md, PDF p. 758 / book p. 762

  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