August 1855
A meeting was held in the log meeting house near the residence of A. K. [Hatlestad].
The regionGrade A · 1 independent source
The evidence
“Hatlestad. In 1851, at a meeting held at Cedarville, 111,, September 18-24, it participated by regularly elected delegates in the formation of "The Evangelical Lutheran Synod of Northern Illinois." In the month of August, 1855, a meeting was held in the log meeting house, near the residence of A. K.”
1908-brown-rock-county/31-smaller-cities-villages-towns.md, Vol. 2, PDF p. 133 / book p. 642
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