1Joseph Milligan to Thomas Jefferson, 27 November 1820 (Jefferson Papers)
political economy; works on [index entry]
2Destutt de Tracy to Thomas Jefferson, 24 November 1820 (Jefferson Papers)
political economy; works on [index entry]
3John Adams to Thomas Jefferson, 2 April 1819 (Jefferson Papers)
political economy; works on [index entry]
4Destutt de Tracy to Thomas Jefferson, 10 March 1819 (Jefferson Papers)
political economy; works on [index entry]
5Joseph Milligan to Thomas Jefferson, 3 March 1819 (Jefferson Papers)
political economy; works on [index entry]
6John Adams to Thomas Jefferson, 2 March 1819 (Jefferson Papers)
political economy; works on [index entry]
7John Adams to Thomas Jefferson, 24 February 1819 (Jefferson Papers)
political economy; works on [index entry]
8Joseph Milligan to Thomas Jefferson, 17 February 1819 (first letter) (Jefferson Papers)
political economy; works on [index entry]
9John Adams to Thomas Jefferson, 29 January 1819 (Jefferson Papers)
political economy; works on [index entry]
10Robert Walsh to Thomas Jefferson, 25 January 1819 (Jefferson Papers)
political economy; works on [index entry]