1James Barbour to Thomas Jefferson, 4 March 1816 (Jefferson Papers)
Barbour, James; seeks plants [index entry]
2Thomas Jefferson to James Barbour, 5 March 1816 (Jefferson Papers)
Barbour, James; seeks plants [index entry]
3James Barbour to Thomas Jefferson, 29 March 1817 (Jefferson Papers)
Barbour, James; seeks plants [index entry]