1845
A resident had been a resident of Janesville since 1845 and opened a meat market on West Milwaukee street.
Rock CountyGrade A · 1 independent source
The evidence
“Mr. Myers had been a resident of Janesville since 1845, and had accumulated quite a fortune in the manufacture of lard, and in packing pork and other meats. In many ways he was considered very eccentric, but he devoted his means and services for many years to the development of Janesville, building stores on Main street south of the Myers house.”
1908-brown-rock-county/26-history-of-janesville.md, Vol. 2, PDF p. 48 / book p. 561
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
On the printed page (Vol. 2, PDF p. 48 / book p. 561) · open the whole page