David F. Mayberry left McComb's house saying he was going to Janesville, and in passing through Beloit met Andrew Alger.

The evidence

• “McComb, a farmer living near Rockford, and paid them frequent visits. On the 14th of June, 1855, Mayberry left McOomb's house, saying he was going to Janesville. While passing through Beloit, he met and made the acquaintance of Andrew Alger, a man fifty years of age, who was engaged in the lumber business.”

  1879-history-of-rock-county/11-rock-county-ch05-press-institutions-tragedy.md, PDF p. 409 / book p. 413

  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