Complex sentence: The project had only one survivor, a very practical woman who married a French Canadian fur-trapper who fed her in exchange for her help with the chores; this pragmatic couple were the founders of the current settlement.
Split into simpler sentences: The project had only one survivor, a very practical woman who married a French Canadian fur-trapper who fed her in exchange for her help with the chores. This pragmatic couple were the founders of the current settlement.