John P. died.

The evidence

• “Y., June 3, 1833 ; their children are Mary Jane, born Oct. 19, 1834; John P., April 12, 1839, died Sept. 30, 1840; Thomas B., born Feb. 13, 1840, who now is miller at Indian Ford; Alfred K., March 12, 1832. died Sept. 15, 18G1, in U.”

  1879-history-of-rock-county/27-bios-fulton.md, PDF p. 839 / book p. 848

  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