1Thomas Jefferson to Pierre Samuel Du Pont de Nemours, André Thoüin, and Bartelémy de Faujas-Saint Fond, 16 May 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
2Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 12 June 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
3James Madison to Thomas Jefferson, 6 October 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
4Thomas Jefferson to James Madison, 9 October 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
5James Madison to Thomas Jefferson, 30 October 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
6Isaac A. Coles to Thomas Jefferson, 12 November 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
7Thomas Jefferson to Isaac A. Coles, 29 November 1809 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
8Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 31 March 1811 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
9Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 4 July 1811 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]
10Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 5 September 1811 (Jefferson Papers)
Turgot, Anne Robert Jacques; Oeuvres [index entry]