1Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 12 June 1809 (Jefferson Papers)
Du Pont de Nemours, Pierre Samuel; edits Turgot’s Oeuvres [index entry]
2James Madison to Thomas Jefferson, 6 October 1809 (Jefferson Papers)
Du Pont de Nemours, Pierre Samuel; edits Turgot’s Oeuvres [index entry]
3Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 31 March 1811 (Jefferson Papers)
Du Pont de Nemours, Pierre Samuel; edits Turgot’s Oeuvres [index entry]
4Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 4 July 1811 (Jefferson Papers)
Du Pont de Nemours, Pierre Samuel; edits Turgot’s Oeuvres [index entry]
5Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 5 September 1811 (Jefferson Papers)
Du Pont de Nemours, Pierre Samuel; edits Turgot’s Oeuvres [index entry]
6Thomas Jefferson to Pierre Samuel Du Pont de Nemours, 29 November-14 December 1813 (Jefferson Papers)
Du Pont de Nemours, Pierre Samuel; edits Turgot’s Oeuvres [index entry]