11John Adams to Thomas Jefferson, 2 April 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
12Thomas Jefferson to John Adams, 21 March 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
13Destutt de Tracy to Thomas Jefferson, 10 March 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
14Thomas Jefferson to Lafayette, 8 March 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
15Joseph Milligan to Thomas Jefferson, 3 March 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
16John Adams to Thomas Jefferson, 2 March 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
17John Adams to Thomas Jefferson, 24 February 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
18Joseph Milligan to Thomas Jefferson, 17 February 1819 (first letter) (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
19John Adams to Thomas Jefferson, 29 January 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]
20Robert Walsh to Thomas Jefferson, 25 January 1819 (Jefferson Papers)
Destutt de Tracy, Antoine Louis Claude; A Treatise on Political Economy [index entry]