“Enclosure: Livingston’s Steam Engine, 26 January 1799,” Founders Online, National Archives, https://founders.archives.gov/documents/Jefferson/01-30-02-0454. [Original source: The Papers of Thomas Jefferson, vol. 30, 1 January 1798 – 31 January 1799, ed. Barbara B. Oberg. Princeton: Princeton University Press, 2003, p. 657.]