1Thomas Jefferson to John Adams, 14 October 1816 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); TJ on [index entry]
2Thomas Jefferson to John Adams, 11 January 1817 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); TJ on [index entry]
3Thomas Jefferson to John Adams, 25 November 1816 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); TJ on [index entry]
4Thomas Jefferson to Thomas Cooper, 10 July 1812 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy) [index entry]
5Thomas Jefferson to Thomas Cooper, 16 January 1814 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); TJ sends to T. Cooper [index entry]
6Thomas Jefferson to Destutt de Tracy, 28 November 1813 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); manuscript of, sent to TJ [index entry]
7Thomas Jefferson to Destutt de Tracy, 26 December 1820 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); TJ on [index entry]
8Thomas Jefferson to William Duane, 22 January 1813 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy) [index entry]
9Thomas Jefferson to William Duane, 4 April 1813 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy) [index entry]
10Thomas Jefferson to William Duane, 3 July 1814 (Jefferson Papers)
Élémens d’Idéologie (Destutt de Tracy); TJ on [index entry]