“Henry Lee to James Madison, 14 January 1788,” Founders Online, National Archives, https://founders.archives.gov/documents/Madison/01-10-02-0230. [Original source: The Papers of James Madison, vol. 10, 27 May 1787–3 March 1788, ed. Robert A. Rutland, Charles F. Hobson, William M. E. Rachal, and Frederika J. Teute. Chicago: The University of Chicago Press, 1977, p. 373.]
Oliver W. Holmes, “Shall Stagecoaches Carry the Mail? A Debate of the Confederation Period,” William and Mary Quarterly, 3d ser., XX (1963): 555–73.