1To Thomas Jefferson from William Barton, 31 December 1791 (Jefferson Papers)
...Society on 2 Dec. 1791, were printed in the American Philosophical Society Transactions,
2To Thomas Jefferson from Marc Auguste Pictet, 20 May 1801 (Jefferson Papers)
...Esch’s departure. I have occasionally made use of the American Philosophical Society Transactions
3To Thomas Jefferson from Volney, 10 May 1803 (Jefferson Papers)
: TJ had sent Volney the latest volume of American Philosophical Society Transactions and TJ’s
4Thomas Jefferson’s Account with Joseph Milligan, [8–10 March 1809] (Jefferson Papers)
American Philosophical Society; Transactions [index entry]
5John Adlum to Thomas Jefferson, 15 February 1810 (Jefferson Papers)
American Philosophical Society; Transactions [index entry]
6William Lambert to Thomas Jefferson, 23 April 1812 (Jefferson Papers)
American Philosophical Society; Transactions [index entry]
7Alden Partridge to Thomas Jefferson, 6 September 1815 (Jefferson Papers)
American Philosophical Society; Transactions [index entry]
8Caspar Wistar to Thomas Jefferson, 20 May 1817 (Jefferson Papers)
American Philosophical Society; Transactions [index entry]
9John Vaughan to Thomas Jefferson, 2 June 1817 (Jefferson Papers)
American Philosophical Society; Transactions [index entry]
10John Vaughan to Thomas Jefferson, 18 June 1817 (Jefferson Papers)
American Philosophical Society; Transactions [index entry]