Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Françoise Robin du Pont (1748-1841) was the second wife of du Pont de Nemours. The collection contains photocopies of letters of both du Pont de Nemours. His letter regards obtaining a "safe conduct" passport while heading a scientific expedition being sent to North America by the Institute National. Her letters are with a Bergen Point, New Jersey former neighbor, C. Preudhomme, and his son.