11Thomas Jefferson’s Transactions with James Leitch, 12 December 1821–12 September 1822 (Jefferson Papers)
du Pont de Nemours, Eleuthère Irénée; gunpowder of [index entry]
12Thomas Jefferson to Patrick Gibson, 20 May 1813 (Jefferson Papers)
du Pont de Nemours, Eleuthère Irénée; gunpowder of [index entry]