His eldest son, who would become a royal surveyor of the colony and also was named Jean Guyon, married Élisabeth Couillard, daughter of :fr:Guillaume Couillard, New France's first settler to be ennobled by Louis XIV, and granddaughter of Louis Hébert, the first French colonist established with his family in New France.
His eldest son, who would become a royal surveyor of the colony and also named Jean Guyon, married Élisabeth Couillard, daughter of :fr:Guillaume Couillard, who was ennobled by Louis XIV for his pioneering efforts in New France, and granddaughter of Louis Hébert, the first French colonist to establish himself there.