Gabrielle Josephine de La Fite de Pelleport (1770-1837) was the wife of Victor du Pont (1767-1827), a French American diplomat, politician, and businessman. He was the brother of Éleuthère Irénée du Pont (1771-1834), the founder of the E.I. du Pont de Nemours & Company. The account book is supposedly the household account book of du Pont and contains handwriting of various people, including her son Charles I. du Pont (1797-1869). Entries include purchases of coal, whiskey, soap, candles, and other items, as well as construction materials and tools.

Pierre Samuel du Pont de Nemours (1739-1817) was a French political economist, writer, publisher, and public administrator. He was an advocate for a national educational system and promoted Franco-American trade relations. The collection consists of Pierre Samuel du Pont de Nemours correspondence and writings in addition to correspondence of his second wife, Françoise (Robin) Poivre.

Victor Marie du Pont (1767-1827) was a French diplomat who later immigrated to the United States and established various trading companies before moving to Delaware. He was the eldest son of Pierre Samuel du Pont de Nemours (1739-1817). The collection consists of correspondence, business and personal papers, and writings of Victor Marie du Pont and his wife, Gabrielle Joséphine (de la Fite de Pelleport) du Pont.