1845
Mr. King built a shop on the opposite corner (a buggy, the first constructed in Janesville, had been built in his shop).
The evidence
“Sexton, built the first buggy ever constructed in Janesville, in King's shop. King in 1845, built the shop on the opposite corner and continued the business until 1851, when having built the hotel adjoining, he opened it under the name of JaneSville City Hotel. This he conducted until his death in July, 1852, disposing of his manufacturing interests to Robert Hodge.”
1879-history-of-rock-county/14-rock-county-ch08-janesville.md, PDF p. 559
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. 559) · open the whole page “In 1845 Mr. King, built a shop on the opposite corner, which he operated until 1851, when he built the Janesville City hotel,”
1908-brown-rock-county/27-early-janesville-manufacturers.md, Vol. 2, PDF p. 91 / book p. 602
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. 91 / book p. 602) · open the whole page