1859
Northwestern Mutual Life began business.
BeloitGrade A · 1 independent source
The evidence
“First High School class. Northwestern Mutual Life begins business. 1859, Whiton buried. Courthouse burned.”
1908-brown-rock-county/00-front-matter-vol-1.md, Vol. 1, PDF p. 16
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
On the printed page (Vol. 1, PDF p. 16) · open the whole page
