1Lacépède to Thomas Jefferson, 31 May 1809 (Jefferson Papers)
Buffon, Georges Louis Leclerc, comte de; mentioned [index entry]
2Madame de Staël Holstein to Thomas Jefferson, 10 November 1812 (Jefferson Papers)
Buffon, Georges Louis Leclerc, comte de; mentioned [index entry]
3Thomas Jefferson to Madame de Tessé, 8 December 1813 (Jefferson Papers)
Buffon, Georges Louis Leclerc, comte de; mentioned [index entry]
4John Adams to Thomas Jefferson, 16 July 1814 (Jefferson Papers)
Buffon, Georges Louis Leclerc, comte de; mentioned [index entry]
5John Adams to Thomas Jefferson, 6 May 1816 (Jefferson Papers)
Buffon, Georges Louis Leclerc, comte de; mentioned [index entry]