21Thomas Jefferson to Pierre Samuel Du Pont de Nemours, 3 August 1816 (Jefferson Papers)
political economy; works on [index entry]
22Thomas Jefferson to Joseph Milligan, 8 September 1816 (Jefferson Papers)
political economy; works on [index entry]
23Thomas Jefferson to John Barnes, 12 October 1816 (Jefferson Papers)
political economy; works on [index entry]
24Thomas Jefferson to John Adams, 14 October 1816 (Jefferson Papers)
political economy; works on [index entry]
25Thomas Jefferson to John Adams, 25 November 1816 (Jefferson Papers)
political economy; works on [index entry]
26Thomas Jefferson to John Barnes, 31 December 1816 (Jefferson Papers)
political economy; works on [index entry]
27Thomas Jefferson to Joseph Milligan, 6 January 1817 (Jefferson Papers)
political economy; works on [index entry]
28Thomas Jefferson to John Adams, 11 January 1817 (Jefferson Papers)
political economy; works on [index entry]