1Thomas Jefferson to John Armstrong, 6 March 1809 (Jefferson Papers)
Armstrong, John; letters to [index entry]
2Thomas Jefferson to John Armstrong, 5 August 1809 (Jefferson Papers)
Armstrong, John; letters to [index entry]
3Thomas Jefferson to John Armstrong, 13 December 1810 (Jefferson Papers)
Armstrong, John; letters to [index entry]
4Thomas Jefferson to John Armstrong, 8 February 1813 (Jefferson Papers)
Armstrong, John; letters to [index entry]
5Thomas Jefferson to John Armstrong, 21 February 1813 (Jefferson Papers)
Armstrong, John; letters to [index entry]
6Thomas Jefferson to John Armstrong, 17 January 1818 (Jefferson Papers)
Armstrong, John; letters to [index entry]
7Thomas Jefferson to John Armstrong, 20 March 1818 (Jefferson Papers)
Armstrong, John; letters to [index entry]
8Thomas Jefferson to John Armstrong, 14 March 1819 (Jefferson Papers)
Armstrong, John; letters to [index entry]
9Thomas Jefferson to John Armstrong, 19 November 1819 (Jefferson Papers)
Armstrong, John; letters to [index entry]