Spring 1846
A settler located at La Prairie, Sec. 11, purchasing a 160-acre farm from the Government.
The regionGrade A · 1 independent source
The evidence
“P. 0. Janesville ; born in New York in 1825 ; came to Wisconsin in the spring of 1846, locating at La Prairie, Sec. 11, where he purchased a farm of 160 acres from the Government. Remained until about the year 1871, when he moved to Sec. 8, and purchased 160 acres, his present homestead.”
1879-history-of-rock-county/26-bios-la-prairie.md, PDF p. 832
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