1To Thomas Jefferson from John van Heukelom & Son, 1 March 1786 (Jefferson Papers)
When your Excellency reads the following details of an affair between us and Thos. Barclay,...
2From Thomas Jefferson to John van Heukelom & Son, 10 September 1787 (Jefferson Papers)
The purpose of the present is to acknowlege the receipt of your letter of March 1786. and to...