Census entries for John Guitar [I03425] and Catherina (Koebel) Guitar [I03366], with children John Guitar [I03426], Michael Guitar [I03427], and Nicholas Guitar [I03428]. Joseph Voisin [I00021] is listed as Joseph Guitar. He was a half-brother to John, Michael and Nicholas.

Humberstone Township, Welland County, Ontario, Canada

Source: Census of 1861, Canada West, Humberstone Township, Welland County, Ontario, Library and Archives Canada John Guitar, (http://central.bac-lac.gc.ca/.redirect?app=census&id=45180231&lang=eng : downloaded 23 May 2023).