The census of 1855 recorded Harmony's population as 805, taken by James M. Deans.

The evidence

• “Preceding the organization of March 11, 1848, Township No. 3 had been apart of Janesville. The population of Harmony as shown by the State- census of 1855, taken by J^mes M. Deans, was 805.”

  1879-history-of-rock-county/13-rock-county-ch07-town-histories.md, PDF p. 505 / book p. 509

  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