1Edmund Bacon to Thomas Jefferson, 21 November 1820 (Jefferson Papers)
2Wilson Cary Nicholas to Thomas Jefferson, 2 April 1817 (Jefferson Papers)
3Thomas Jefferson to Wilson Cary Nicholas, 20 September 1819 (Jefferson Papers)
4Thomas Jefferson to Thomas Mann Randolph, 3 August 1821 (Jefferson Papers)
5Extract from Elizabeth Trist to Nicholas P. Trist, 3 February 1819 (Jefferson Papers)