1David McClure to Thomas Jefferson, [received 9 May 1819] (Jefferson Papers)
This day I have put in the mail a small box containing a mathematical instrume n t , with ample...
2Thomas Jefferson to David McClure, 15 May 1819 (Jefferson Papers)
I have duly recieved your letter dated May with the model of your mathematical instrument and...
3David McClure to Thomas Jefferson, 19 October 1820 (Jefferson Papers)
Some time since I took the liberty to forward you a description of a plotting table. I have...