1Thomas Jefferson to José Corrêa da Serra, 1 January 1816 (Jefferson Papers)
Barton, Benjamin Smith; and journals of M. Lewis [index entry]
2José Corrêa da Serra to Thomas Jefferson, 12 February 1816 (Jefferson Papers)
Barton, Benjamin Smith; and journals of M. Lewis [index entry]
3José Corrêa da Serra to Thomas Jefferson, 29 March 1816 (Jefferson Papers)
Barton, Benjamin Smith; and journals of M. Lewis [index entry]
4Thomas Jefferson to William Clark, 8 September 1816 (Jefferson Papers)
Barton, Benjamin Smith; and journals of M. Lewis [index entry]
5Thomas Jefferson to John Vaughan, 28 June 1817 (Jefferson Papers)
Barton, Benjamin Smith; and journals of M. Lewis [index entry]
6Enclosure: Nicholas Biddle to William Tilghman, 6 April 1818 (Jefferson Papers)
Barton, Benjamin Smith; and journals of M. Lewis [index entry]