1Samuel L. Mitchill to Thomas Jefferson, 10 February 1817 (Jefferson Papers)
Mitchill, Samuel Latham; sends work to TJ [index entry]
2Thomas Jefferson to Samuel L. Mitchill, 20 February 1817 (Jefferson Papers)
Mitchill, Samuel Latham; sends work to TJ [index entry]
3Thomas Sewall to Thomas Jefferson, 30 March 1820 (Jefferson Papers)
Mitchill, Samuel Latham; sends works to TJ [index entry]
4Samuel L. Mitchill to Thomas Jefferson, 16 May 1820 (Jefferson Papers)
Mitchill, Samuel Latham; sends works to TJ [index entry]