About 1840 — Erastus [surname cut] settled on 240 acres in Turtle.

The evidence

• “Erastus came to a place now called Roscoe, in Illinois, in 1836, and in the fall of same year went to Rock Co., Wis. ; helped to raise the first house put up in Beloit. About 1840, settled on 240 acres in Turtle ; started for California in 1851 ; took a year to get there; was there seven years. Married, in May, 1859, Widow Harriet Gault,' an English lady ; have one child, Annie, born Jan. 26, 1864.”

  1879-history-of-rock-county/23-bios-turtle.md, PDF p. 800 / book p. 804

  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