1Alexander von Humboldt to Thomas Jefferson, 12 June 1809 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
2John W. Campbell to Thomas Jefferson, 29 July 1809 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
3Isaac Riley to Thomas Jefferson, 29 September 1809 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
4Isaac Riley to Thomas Jefferson, 16 October 1809 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
5William Turpin to Thomas Jefferson, [received 5 November 1809] (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
6Erastus Granger to Thomas Jefferson, 8 December 1809 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
7Samuel Knox to Thomas Jefferson, 22 January 1810 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
8William O. Allen to Thomas Jefferson, 9 February 1810 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
9George Churchman to Thomas Jefferson, 12 May 1810 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]
10William Duane to Thomas Jefferson, 17 August 1810 (Jefferson Papers)
Jefferson, Thomas; Writings; Notes on the State of Virginia [index entry]