Rock County could scarcely be said to have a separate political organization until this year; before that time Rock and Walworth counties united in their representatives.

The evidence

• “Rock county could scarcely be said to have a separate organization until 1845. Before that time Rock and "Walworth counties united in their representatives in the legislature ; yet each had its own county officers.”

  1908-brown-rock-county/25-political-history.md, Vol. 1, PDF p. 554 / book p. 514

  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