1To 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...
2To 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...
3To 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...
4To 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...