Township surveys were under contract in the third quarter of 1838.

Rock CountyGrade A · 1 independent source

The evidence

“Robert T. Lytle, South Boundary Lucius Lyon 3d quarter, 1838. Township 1 N., Range 14 E. : Mullett & Brink Robert T.”
1879-history-of-rock-county/08-rock-county-ch02-mounds-indians-black-hawk-settlement.md, PDF p. 329
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. 329) · open the whole page