November 25, 1855
Water-Witch Engine and Hose Company No. 1 was organized (Beloit); Brown's account also places the Water Witch company's organization in 1855.
BeloitGrade A · 1 independent source
The evidence
“Water- Witch' Company No. 1. — The Water-Witch Engine and Hose Company No. 1 was organized November 25, 1855, with the following officers : Foreman, Warren Hodgdon ; Assistant Foreman, J.”
1879-history-of-rock-county/15-rock-county-ch09-beloit.md, PDF p. 642 / book p. 646
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