The Janesville Gazette announced editorially that hostilities in Mexico had actually commenced.

The evidence

• “May 16, 1846, the Gazette announces editorially that hostilities in Mexico have actually commenced, and condemns the paucity of numbers composing the army under Gen. Taylor.”

  1879-history-of-rock-county/11-rock-county-ch05-press-institutions-tragedy.md, PDF p. 388

  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