1Nicolas G. Dufief to Thomas Jefferson, 4 April 1817 (Jefferson Papers)
Dufief, Nicolas Gouin; travels to Europe [index entry]
2Nicolas G. Dufief to Thomas Jefferson, 9 April 1817 (Jefferson Papers)
Dufief, Nicolas Gouin; travels to Europe [index entry]
3Thomas Jefferson to Nicolas G. Dufief, 11 April 1817 (Jefferson Papers)
Dufief, Nicolas Gouin; travels to Europe [index entry]
4John Laval to Thomas Jefferson, 23 December 1818 (Jefferson Papers)
Dufief, Nicolas Gouin; travels to Europe [index entry]