1To Thomas Jefferson from David Humphreys, 12 February 1791 (Jefferson Papers)
The postponement of the sailing of the Vessel by which I wrote on the 6th instant affords me an...
2To Thomas Jefferson from David Humphreys, 6 February 1791 (Jefferson Papers)
On the 24th. of Janry. I left Madrid, and arrived here this day. I remained a week beyond the...
3To Thomas Jefferson from David Humphreys, 31 March 1791 (Jefferson Papers)
Mafra, 31 Mch. 1791. He received packet last night from Mr. Bulkeley and information of a vessel...
4To Thomas Jefferson from David Humphreys, 6 March 1791 (Jefferson Papers)
I do not wait to become fully acquainted with the commercial intercourse which subsists between...