The McLay family came to Rock Co.

The evidence

• “P. 0. Rock Prairie ; born in Stirlingshire, Scotland, in 1819 ; son of John and Janet McLay ; came to America and to Rock Co., in 1844, locating on the farm he now owns of 350 acres, in 1846. Married Miss Jane, daughter of William and Mary Zuill, Feb. 23, 1851 ; they have four children — William, David, Mary and James.”

  1879-history-of-rock-county/24-bios-johnstown.md, PDF p. 807

  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