1827
Henry Magee (father of a Janesville-area farmer) was born.
Rock CountyGrade A · 1 independent source
The evidence
“P. 0. Janesville; born in 1857, in Warren Co., Pcnn., near Oil City ; came to Wisconsin with his parents in 1865, resided here ever since; was educated at Janesville High School; owns 160 acres all pretty much under cultivation ; is a son of the deceased Mr, Henry Magee, who was born in 1827 and died February, 1866; was in the lumber and oil business in Pennsyl-. vania before coming to Wisconsin. Mr.”
1879-history-of-rock-county/17-bios-janesville.md, PDF p. 710 / book p. 714
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