1Thomas P. Jones to Thomas Jefferson, 5 March 1821 (Jefferson Papers)
American Philosophical Society; members of [index entry]
2Petty Vaughan to Thomas Jefferson, 29 March 1819 (Jefferson Papers)
American Philosophical Society; members of [index entry]
3Julius T. Ducatel to Thomas Jefferson, 3 August 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
4Peter S. Du Ponceau to Thomas Jefferson, 11 December 1817 (Jefferson Papers)
American Philosophical Society; members of [index entry]
5William James Macneven to Thomas Jefferson, 18 December 1821 (Jefferson Papers)
American Philosophical Society; members of [index entry]
6Peter S. Du Ponceau to Thomas Jefferson, 9 October 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
7William H. Keating to Thomas Jefferson, 1 July 1822 (Jefferson Papers)
American Philosophical Society; members of [index entry]
8William S. Jacobs to Thomas Jefferson, 3 July 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
9John D. Godman and John P. Foote to Thomas Jefferson, 6 March 1822 (Jefferson Papers)
American Philosophical Society; members of [index entry]
10Louis H. Girardin to Thomas Jefferson, 16 August 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]