1To Thomas Jefferson from Tobias Lear, with List of Patents, 30 August 1791 (Jefferson Papers)
The fifteen enclosed Patents , having received the signature of the President of the United...
2To Thomas Jefferson from the University of the State of Pennsylvania, 20 September 1791 (Jefferson Papers)
[ Philadelphia ], 20 Sep . [ 1791 ]. He is directed by the trustees and faculty of the University...