1Thomas Jefferson to Fernagus De Gelone, 21 July 1817 (Jefferson Papers)
2Fernagus De Gelone to Thomas Jefferson, 5 August 1817 (Jefferson Papers)
3Thomas Jefferson to Joseph Milligan, 31 October 1817 (Jefferson Papers)
4Enclosure: Thomas Jefferson’s Account with Joseph Milligan, [ca. 6 February 1818] (Jefferson Papers)