1To Thomas Jefferson from Caspar Wistar, 18 February 1801 (Jefferson Papers)
I should have replied sooner to your favour of Feby. 3d. but I did not wish to intrude upon you...
2To Thomas Jefferson from Caspar Wistar, 8 December 1800 (Jefferson Papers)
I am not certain that you will have leisure to attend to the subject which follows, but the...
3To Thomas Jefferson from Caspar Wistar, 19 October 1800 (Jefferson Papers)
The unceasing calls of my profession have accasioned me to postpone my answer to your esteemed...