11Thomas Jefferson to John Wayles Eppes, 26 October 1817 (Jefferson Papers)
Leschot, Louis A.; as watchmaker [index entry]
12Thomas Jefferson to Franz X. Zeltner, 23 July 1818 (Jefferson Papers)
Leschot, Louis A.; as watchmaker [index entry]
13Ferdinand R. Hassler to Thomas Jefferson, 5 January 1820 (Jefferson Papers)
Leschot, Louis A.; as watchmaker [index entry]