1To Thomas Jefferson from David Hartley, 15 April 1785 (Jefferson Papers)
I am infinitely obliged to you for the favour of your letter which contains most interesting...
2To Thomas Jefferson from David Hartley, 5 October 1785 (Jefferson Papers)
I return you many thanks for the favours of yours which I received by Col. Franks. You will make...
3To Thomas Jefferson from David Hartley, 5 March 1786 (Jefferson Papers)
I beg leave to introduce to you my relations Mr. Saml. Hartley and his Brother Col. James...
4To Thomas Jefferson from David Hartley, 23 April 1787 (Jefferson Papers)
By the favour of Coll. Smith I trouble you with this line of which the purpose and contents are...