Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. Victor Marie du Pont (1767-1827), the son of Pierre Samuel, was a French diplomat who later immigrated to the United States and established various trading companies before moving to Delaware. This collection contains three photocopied documents in French: a memoir by du Pont de Nemours, letter of Eustache Briux to Charles Maurice de Talleyrand-Perigord, and a letter from Victor du Pont to Talleyrand.