1Thomas Sewall to Thomas Jefferson, 30 March 1820 (Jefferson Papers)
When the accompanying letter, seeds & pamphlet of D r Mitchill , were handed me, I anticipated...
2Thomas Jefferson to Thomas Sewall, 11 April 1820 (Jefferson Papers)
I duly recieved your favor of Mar. 30. and the papers it inclosed which I have read with...
3To Thomas Jefferson from Thomas Sewall, 7 July 1825 (Jefferson Papers)
Though not Known to you except by a letter from D r Mitchill of N. York which I enclosed to you...
4To James Madison from Thomas Sewall, 7 November 1825 (Madison Papers)
Though you are removed from the seat of the National Government believing that you still cherish...
5To Thomas Jefferson from Thomas Sewall, 7 November 1825 (Jefferson Papers)
Believing that you Still continue to cherish an interest in the literary & Scientific...
6From James Madison to Thomas Sewall, 14 November 1825 (Madison Papers)
I have recd. your favor of the 7th. with a copy of your Lecture at the opening of the Medical...
7From Thomas Jefferson to Thomas Sewall, 16 November 1825 (Jefferson Papers)
Th Jefferson returns his thanks to D r Sewall for the information he has been so kind as to...