1James Madison to Thomas Jefferson, 16 August 1809 (Jefferson Papers)
Gardenier, Barent [index entry]
2John B. Colvin to Thomas Jefferson, 4 February 1811 (Jefferson Papers)
Gardenier, Barent [index entry]
3Thomas Jefferson to John Wayles Eppes, 24 March 1811 (Jefferson Papers)
Gardenier, Barent [index entry]
4Thomas Jefferson to John Adams, 5 May 1817 (Jefferson Papers)
Gardenier, Barent [index entry]