1849
By the Revised Statutes of 1849, Wisconsin was divided into three congressional districts.
The regionGrade A · 1 independent source
The evidence
“By the Revised Statutes of 1849, Wisconsin was divided into three congressional districts — the second congressional apportionment — each of which was entitled to elect one representative in the congress of the United States. The counties of Milwaukee, Waukesha, Walworth and Racine constituted the first district; the counties of Rock, Green, La Fayette, Grant, Iowa, Dane, Sauk, Adams, Portage, Richland, Crawford, Chippewa, St.”
1879-history-of-rock-county/02-wisconsin-as-a-state.md, PDF p. 54
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
On the printed page (PDF p. 54) · open the whole page