William B. was born.

The evidence

• “Married, in 1855, Martha B. Langworthy, who died in May, 187(1, leaving two children — William B., born Aug. 1, 1858 ; Susan A., March, 1861.”

  1879-history-of-rock-county/27-bios-fulton.md, PDF p. 841 / book p. 845

  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