1Enclosure: Thomas Jefferson’s List of Recommended Books, [ca. 4 October 1809] (Jefferson Papers)
Elements of Botany (B. S. Barton) [index entry]
2Thomas Jefferson’s Account with Joseph Milligan, [8–10 March 1809] (Jefferson Papers)
Elements of Botany (B. S. Barton) [index entry]
3Thomas Jefferson to John Minor, 30 August 1814, including Thomas Jefferson to Bernard Moore, [ca. 1773?] (Jefferson Papers)
Elements of Botany (B. S. Barton) [index entry]