1Thomas Jefferson to Robert Greenway, 17 April 1821 (Jefferson Papers)
botany; scholars of [index entry]
2Thomas Jefferson to Alexander von Humboldt, 6 March 1809 (Jefferson Papers)
botany; scholars of [index entry]
3Robert Greenway to Thomas Jefferson, 20 March 1821 (Jefferson Papers)
botany; scholars of [index entry]
4Constantine S. Rafinesque to Thomas Jefferson, 25 January 1821 (Jefferson Papers)
botany; scholars of [index entry]
5Francois André Michaux to Thomas Jefferson, 10 August 1810 (Jefferson Papers)
botany; scholars of [index entry]
6Robert B. Stark to Thomas Jefferson, 20 August 1818 (Jefferson Papers)
botany; scholars of [index entry]
7David Hosack to Thomas Jefferson, 1 August 1816 (Jefferson Papers)
botany; scholars of [index entry]
8James H. McCulloh to Thomas Jefferson, 14 November 1817 (Jefferson Papers)
botany; scholars of [index entry]
9Bernard McMahon to Thomas Jefferson, 24 December 1809 (Jefferson Papers)
botany; scholars of [index entry]
10Peter Walsh to Thomas Jefferson, 10 October 1811 (Jefferson Papers)
botany; scholars of [index entry]