March 8, 1848
The town of Plymouth was organized.
The evidence
“The town of Plymouth is situated in the southwest quarter of the county, bounded on the north by Center, east by Rock, south by Newark, and west by Spring Valley. It was organized by act of Territorial Legislature, approved' March 8, 1848, by which act it was made to include all of Township 2 north, of Range 11 east, of the Government survey.”
1879-history-of-rock-county/13-rock-county-ch07-town-histories.md, PDF p. 516 / book p. 520
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. 516 / book p. 520) · open the whole page “By an act of the territorial legislature, approved March 8, 1848, all that part of the town of Center in Rock county, embraced in township No. 2 north, of range No. 11 east, was organized into a separate town by the name of Plymouth.”
1908-brown-rock-county/05-historic-evolution.md, Vol. 1, PDF p. 136 / book p. 122
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. 1, PDF p. 136 / book p. 122) · open the whole page