1Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 12 June 1809 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
2Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 20 January 1810 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
3Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 10 April 1810 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
4Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 10 July 1810 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
5Pierre Samuel Du Pont de Nemours to Thomas Jefferson, [ca. 28 July 1810] (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
6Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 14 September 1810 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
7Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 31 March 1811 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
8Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 4 July 1811 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
9Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 5 September 1811 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]
10Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 12 December 1811 (Jefferson Papers)
French language; letters in, from; P. S. Du Pont de Nemours [index entry]