71Thomas Jefferson to William Thornton, 9 February 1815 (Jefferson Papers)
I have to thank you for the drawing of the beautiful hydraulic machine with which you favored me...
72Thomas Jefferson to William Thornton, 20 May 1816 (Jefferson Papers)
M r Delaplaine of Philadelphia , being en g aged in a work of engravings of American characters,...
73Thomas Jefferson to William Thornton, 27 July 1816 (Jefferson Papers)
Your favor of the 20 th is recieved, and I take up my pen merely to assure you I had not...
74Thomas Jefferson to William Thornton, 9 May 1817 (Jefferson Papers)
Your favor of Apr. 18. was duly recieved, and the two drawings were delivered here by mr & mrs...
75Thomas Jefferson to William Thornton, [29] January 1821 (Jefferson Papers)
Your letter of the 9 th was 19. days in it’s passage to me, being received yesterday evening...
76From James Madison to William Thornton, 9 September 1823 (Madison Papers)
I have recd. yr. letter of the 2d. instant & am truly sorry for the loss sustained by you in the...