Nelson Hurlburt built a two-story block.

The evidence

• “block two stories had been built by Nelson Hurlburt in 1849, and during the year 1855 the balance was raised three stories by J. M.”

  1908-brown-rock-county/26-history-of-janesville.md, Vol. 2, PDF p. 38 / book p. 552

  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