A census of Rock County was taken, showing Janesville at 2,587 and Beloit at 1,851 (the county total from P3 being 14,720).

The evidence

• “Newark 360 464 Clinton 220 165 658 Bradford 961 385 Turtle 404 316 720 12405 Total in the county. A census for the year 1847 was taken December 1, viz.: Janesville, 2,587 ; Beloit, 1,851 ;”

  1879-history-of-rock-county/11-rock-county-ch05-press-institutions-tragedy.md, PDF p. 416

  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