Frank Leslie was born.

The evidence

• “Dudley, a native of Massachusetts. Had six children — Frank Leslie, born June, 1860 (died Jan. 5, 1862) ; Charles A., born March 16, 1862 ;”

  1879-history-of-rock-county/26-bios-la-prairie.md, PDF p. 835 / book p. 839

  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