1Thomas Jefferson’s Notes on Expenses, 9 March 1809 (Jefferson Papers)
2Thomas Jefferson to Charles Willson Peale, 10 March 1809 (Jefferson Papers)
3Charles Willson Peale to Thomas Jefferson, 21 March 1809 (Jefferson Papers)
4Charles Willson Peale to Thomas Jefferson, 25 June 1809 (Jefferson Papers)
5Thomas Jefferson to John Barnes, 22 August 1809 (Jefferson Papers)
6Thomas Jefferson to Charles Wilson Peale, 22 August 1809 (Jefferson Papers)
7Thomas Jefferson to John Barnes, 25 August 1809 (Jefferson Papers)
8George Jefferson to Thomas Jefferson, 22 September 1809 (Jefferson Papers)