1Thomas Jefferson to David Bailie Warden, 1 February 1816 (Jefferson Papers)
2Thomas Jefferson to Albert Gallatin, 11 April 1816 (Jefferson Papers)
3Thomas Jefferson to Henry Jackson, 31 January 1816 (Jefferson Papers)
4Thomas Jefferson to Henry Jackson, 8 February 1816 (Jefferson Papers)
5Thomas Jefferson to Thomas Appleton, 31 January 1816 (Jefferson Papers)
6Thomas Jefferson to George Ticknor, 31 January 1816 (Jefferson Papers)
7Thomas Jefferson to John Vaughan, 7 April 1816 (Jefferson Papers)
8Thomas Jefferson to Stephen Cathalan, 1 February 1816 (Jefferson Papers)
9Thomas Jefferson to George Ticknor, 8 February 1816 (Jefferson Papers)