1David Bailie Warden to Thomas Jefferson, 1 July 1811 (Jefferson Papers)
2Thomas Jefferson to Lafayette, 10 July 1811 (Jefferson Papers)
3Thomas Jefferson to David Bailie Warden, 10 July 1811 (Jefferson Papers)
4Thomas Jefferson to William Duane, 25 July 1811 (Jefferson Papers)
5Destutt de Tracy to Thomas Jefferson, 21 October 1811 (Jefferson Papers)
6David Bailie Warden to Thomas Jefferson, 10 December 1811 (Jefferson Papers)
7Destutt de Tracy to Thomas Jefferson, 29 August 1813 (Jefferson Papers)