Fall 1853
Democrats, Whigs and Free-Soilers each called a convention to nominate candidates for the November election.
Nation and worldGrade A · 1 independent source
The evidence
“On the 21st of September, Timothy Burns, lieutenant governor of Wisconsin, died at La Crosse. As a testimonial of respect for the deceased the several State departments, in accordance with a proclamation of the governor, were closed for one day — October 3, 1853. In the Fall of this year, democrats, whigs and free-soilers, each called a convention to nominate candidates for the various State offices to be supported by them at the ensuing election in November.”
1879-history-of-rock-county/02-wisconsin-as-a-state.md, PDF p. 58 / book p. 62
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. 58 / book p. 62) · open the whole page