1857
Timothy Jackman sold a half-interest in his business (the Janesville Gas Works) to C. A.
The evidence
“H. Jackman, who ran it until 1857, when he sold a half-interest to 0. A.”
1879-history-of-rock-county/14-rock-county-ch08-janesville.md, PDF p. 558 / book p. 562
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. 558 / book p. 562) · open the whole page “H. Jackman, who ran it until 1857, when C. A.”
1908-brown-rock-county/27-early-janesville-manufacturers.md, Vol. 2, PDF p. 89 / book p. 600
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 · may repeat 1879-history-of-rock-county, so not counted as independent
On the printed page (Vol. 2, PDF p. 89 / book p. 600) · open the whole page
