1To James Madison from Isaac Briggs, 16 May 1812 (Madison Papers)
Having had, for a considerable time past, opportunities of observing the rapid progress of...
2To James Madison from Isaac Briggs, 18 January 1814 (Madison Papers)
Permit me to introduce to thee, two of my young friends from Philadelphia, who will hand to thee...
3Isaac Briggs to Thomas Jefferson, 9 May 1817 (Jefferson Papers)
I feel myself treading on sacred ground when I approach the scenes illuminated and made glorious...
4To Thomas Jefferson from Isaac Briggs, 9 February 1805 (Jefferson Papers)
My last letter to thee was dated at this place, 29th. of the month just past, a few days after my...
5To James Madison from Isaac Briggs, 4 January 1817 (Madison Papers)
Application has been made to me for a letter of introduction to the President U.S. on behalf of...
6To Thomas Jefferson from Isaac Briggs, 17 May 1803 (Jefferson Papers)
Permit me to introduce to thee my youngest brother, Joseph Briggs, who is going with me to the...
7To James Madison from Isaac Briggs, 1 January 1803 (Madison Papers)
Having failed, when I was last in the City of Washington, to procure satisfactory information,...
8To Thomas Jefferson from Isaac Briggs, 31 December 1804 (Jefferson Papers)
By last mail, I sent my report of the Post Road—by the present I send a duplicate. I have not yet...
9To Thomas Jefferson from Isaac Briggs, 22 December 1804 (Jefferson Papers)
Although still in state of convalescence, and but just able to attend to business a few minutes...
10To Thomas Jefferson from Isaac Briggs, 24 June 1808 (Jefferson Papers)
A few days since, I returned from the Eastward, where I had been viewing and examining in...