“Thomas Eston Randolph to Thomas Jefferson, 3 September 1809,” Founders Online, National Archives (http://founders.archives.gov/documents/Jefferson/03-01-02-0391 [last update: 2014-10-23]). Source: The Papers of Thomas Jefferson, Retirement Series, vol. 1, 4 March 1809 to 15 November 1809, ed. J. Jefferson Looney. Princeton: Princeton University Press, 2004, p. 488.