1C. & A. Conrad & Company to Thomas Jefferson, [received 15 April 1810] (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
2Benjamin Smith Barton to Thomas Jefferson, 16 October 1810 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
3Thomas Jefferson to Benjamin Smith Barton, 22 October 1810 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
4David Bailie Warden to Thomas Jefferson, 16 January 1811 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
5Thomas Jefferson to C. & A. Conrad & Company, 24 April 1811 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
6C. & A. Conrad & Company to Thomas Jefferson, 12 June 1811 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
7Thomas Jefferson to Benjamin Smith Barton, 3 April 1813 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
8Nicholas Biddle to Thomas Jefferson, 28 September 1813 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
9William Clark to Thomas Jefferson, 10 October 1816 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]
10Thomas Jefferson to Peter S. Du Ponceau, 7 November 1817 (Jefferson Papers)
Barton, Benjamin Smith; and history of Lewis and Clark Expedition [index entry]