March 22, 1854
The Rock County Board of Supervisors purchased the county poor farm
Rock CountyGrade A · 1 independent source
The evidence
“ROCK COUNTY POOR FARM. On the :22d day of March, 1854, the Board of Supervisors of Rock County purchased of Wright Newhall and E. G.”
1879-history-of-rock-county/11-rock-county-ch05-press-institutions-tragedy.md, PDF p. 407 / book p. 411
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