“IV. Comparative Table of Distances, [November–December? 1783],” Founders Online, National Archives, https://founders.archives.gov/documents/Jefferson/01-06-02-0287-0005. [Original source: The Papers of Thomas Jefferson, vol. 6, 21 May 1781–1 March 1784, ed. Julian P. Boyd. Princeton: Princeton University Press, 1952, pp. 366–367.]