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Francis Gurney du Pont papers
Francis Gurney du Pont (1850-1904) was the youngest son of Alexis I. du Pont (1816-1857) and Joanna Smith du Pont (1815-1876), and grandson of Éleuthère Irénée "E.I." du Pont (1771-1834), founder of E.I. du Pont de Nemours & Company, a chemical company more commonly referred to as the DuPont Company. The papers consist of du Pont's student lecture and laboratory notes; letters; technical notes and papers; records of gunpowder production; patent specifications and drawings; patent correspondence; and printed patents related to gunpowder.
Hagley Yard maps (copies)
Alfred Victor du Pont (1798-1856), son of Sophie Madeleine Dalmas (1775-1828) and Eleuthère Irénée du Pont (1771-1834), the founder of the E.I. du Pont de Nemours & Company. He joined the company in 1818, after an explosion that killed thirty-three people. The maps in this collection depict the Hagley yard based on an 1834 survey done by du Pont.