Point du Sable married a Potawatomi woman named Kitihawa (Christianized to Catherine) on 27October 1788, in a Catholic ceremony in Cahokia, a longtime French Illinois Country colonial settlement on the east side of the Mississippi River. It is likely that this couple was married earlier in the 1770s in a Native American tradition. They had a son named Jean and a daughter named Susanne. Point duSable supported his family as a frontier trader and settler during a period of great upheaval for the former southern dependencies of French Canada and in the Illinois Country, with the regions changing hands several times over the course of half a century.