A census showed the population of Janesville to be 1,812, in 318 families.

The evidence

• “In March, 1848, a census showed the population of Janesville to be 1,812. There were 318 families, 113 of whom lived on the east side of the river and 205 on the west side.”

  1908-brown-rock-county/26-history-of-janesville.md, Vol. 2, PDF p. 28 / book p. 542

  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