The Kelson survey of Beloit was started (and probably finished).

The evidence

• “But he is more widely known and will be longer remembered for his survey of the village of Beloit, which he made, evidently that same year, for Horace White and others, and which is our first recorded survey. It was manifestly based, however, on the Kelsou survey, herein pictured, which had been started and probably finished in the fall of 1837. (I have learned that Hopkins used a somewhat worn chain, while the later surveyor.”

  1908-brown-rock-county/06-history-of-beloit.md, Vol. 1, PDF p. 159 / book p. 143

  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