1Peter S. Du Ponceau to Thomas Jefferson, 11 December 1817 (Jefferson Papers)
American Philosophical Society; members of [index entry]
2Thomas Jefferson to Antonio Dugnani, 14 February 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
3William S. Jacobs to Thomas Jefferson, 3 July 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
4Gerard Troost to Thomas Jefferson, 21 July 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
5Julius T. Ducatel to Thomas Jefferson, 3 August 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
6John Stevens to Thomas Jefferson, 7 November 1818 (Jefferson Papers)
American Philosophical Society; members of [index entry]
7Thomas Jefferson to Dugald Stewart, 21 December 1818 (Jefferson Papers)
American Philosophical Society; members of, foreign [index entry]
8Simeon DeWitt to Thomas Jefferson, 13 January 1819 (Jefferson Papers)
American Philosophical Society; members of [index entry]
9Letter of Recommendation for Richard Ware from James C. Fisher, Edward Burd, John Vaughan, and John Read, 17 March 1819 (Jefferson Papers)
American Philosophical Society; members of [index entry]
10Petty Vaughan to Thomas Jefferson, 29 March 1819 (Jefferson Papers)
American Philosophical Society; members of [index entry]
11Benjamin Vaughan’s Notes on Climate Change, March 1819 (Jefferson Papers)
American Philosophical Society; members of [index entry]
12Pierre de Polética to Thomas Jefferson, 27 May 1819 (Jefferson Papers)
American Philosophical Society; members of, foreign [index entry]
13Enclosure: Report on Thomas Cooper’s Collection of Minerals, 9 July 1819 (Jefferson Papers)
American Philosophical Society; members of [index entry]
14George W. Featherstonhaugh to Thomas Jefferson, 1 March 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
15George Alexander Otis to Thomas Jefferson, 20 June 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
16Louis H. Girardin to Thomas Jefferson, 16 August 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
17John Sanderson to Thomas Jefferson, 19 August 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
18Peter S. Du Ponceau to Thomas Jefferson, 9 October 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
19Thomas Jefferson to Tench Coxe, 13 October 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
20Thomas Jefferson to Isaiah Thomas, 14 October 1820 (Jefferson Papers)
American Philosophical Society; members of [index entry]
21Timothy Pickering to Thomas Jefferson, 12 February 1821 (Jefferson Papers)
American Philosophical Society; members of [index entry]
22Thomas P. Jones to Thomas Jefferson, 5 March 1821 (Jefferson Papers)
American Philosophical Society; members of [index entry]
23Thomas Jefferson to Lewis Cass, 31 May 1821 (Jefferson Papers)
American Philosophical Society; members of [index entry]
24William James Macneven to Thomas Jefferson, 18 December 1821 (Jefferson Papers)
American Philosophical Society; members of [index entry]
25John D. Godman and John P. Foote to Thomas Jefferson, 6 March 1822 (Jefferson Papers)
American Philosophical Society; members of [index entry]
26William H. Keating to Thomas Jefferson, 1 July 1822 (Jefferson Papers)
American Philosophical Society; members of [index entry]