91Thomas Jefferson to Lafayette, 8 March 1819 (Jefferson Papers)
political economy; works on [index entry]
92Destutt de Tracy to Thomas Jefferson, 10 March 1819 (Jefferson Papers)
political economy; works on [index entry]
93Thomas Jefferson to John Adams, 21 March 1819 (Jefferson Papers)
political economy; works on [index entry]
94John Adams to Thomas Jefferson, 2 April 1819 (Jefferson Papers)
political economy; works on [index entry]
95Thomas Jefferson to Joseph Milligan, 9 April 1819 (Jefferson Papers)
political economy; works on [index entry]
96Thomas Jefferson to Joseph Milligan, 13 April 1819 (Jefferson Papers)
political economy; works on [index entry]
97Destutt de Tracy to Thomas Jefferson, 24 November 1820 (Jefferson Papers)
political economy; works on [index entry]
98Joseph Milligan to Thomas Jefferson, 27 November 1820 (Jefferson Papers)
political economy; works on [index entry]
99Thomas Jefferson to Destutt de Tracy, 26 December 1820 (Jefferson Papers)
political economy; works on [index entry]
100Thomas Jefferson to Daniel Raymond, 15 January 1821 (Jefferson Papers)
political economy; works on [index entry]