1To Thomas Jefferson from Robert Patterson, 29 March 1798 (Jefferson Papers)
The drawings, model, and description of your mold-board of least resistance , which you have been...
2To Thomas Jefferson from Robert Patterson, 25 March 1800 (Jefferson Papers)
I take the liberty of introducing the bearer Mr. Smith an acquaintance of mine from Bucks county....
3To Thomas Jefferson from Robert Patterson, 2 January 1801 (Jefferson Papers)
I duly received your favour of the 10th. of last month, and communicated your desire to the...