from The American Heritage® Dictionary of the English Language, 4th Edition
- Du Pont de Nemours, Pierre Samuel 1739-1817. French-born economist and politician who took part in negotiations after the American Revolution (1783) and in the acquisition of the Louisiana Territory (1803). His son Éleuthère Irénée (1771-1834) established a gunpowder works in Delaware (1802) that developed into the chemical firm of E.I. Du Pont de Nemours and Company. His grandson Samuel Francis (1803-1865) was a Union admiral during the Civil War.
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