1Thomas Jefferson to Pierre Samuel Du Pont de Nemours, André Thoüin, and Bartelémy de Faujas-Saint Fond, 16 May 1809 (Jefferson Papers)
Patterson, Robert; letters to accounted for [index entry]
2Thomas Jefferson to Silvain Godon, 21 May 1810 (Jefferson Papers)
Patterson, Robert; letters to accounted for [index entry]
3William Lambert to Thomas Jefferson, 8 December 1809 (Jefferson Papers)
Patterson, Robert; letters to accounted for [index entry]
4Thomas Jefferson to Robert Patterson, 22 December 1815 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
5Thomas Jefferson to Robert Patterson, 21 March 1811 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
6Thomas Jefferson to Robert Patterson, 2 February 1819 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
7Thomas Jefferson to Robert Patterson, 9 August 1812 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
8Thomas Jefferson to Robert Patterson, 14 March 1819 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
9Thomas Jefferson to Robert Patterson, 29 May 1812 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
10Thomas Jefferson to Robert Patterson, 10 November 1811 (Jefferson Papers)
Patterson, Robert; letters to [index entry]