1852
A marriage took place (to Margaret Calahan).
Nation and worldGrade A · 1 independent source
The evidence
“G. came to Rock Co. in 1853. Married Margaret Calahan, daughter of John and Katherine Calahan, in 1852, they have eleven children — Mary J., Agnes, Esther, John, Henry, Ella, Theresa, William, Anna. Frank and Monica.”
1879-history-of-rock-county/22-bios-rock.md, PDF p. 793 / book p. 797
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
On the printed page (PDF p. 793 / book p. 797) · open the whole page