Helen R. was born.

The evidence

• “Married in Lowell, Mass., Feb. 21, 1847, Miss Ann E. Bacon, a native of Bedford, Mass. ; he has four children — Helen R., born Sept. 13, 1848 ; William B., Nov. 18, 1850 ;”

  1879-history-of-rock-county/31-bios-porter.md, PDF p. 867 / book p. 871

  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