Benjamin Franklin (1815). “The works of the late Dr. Benjamin Franklin: consisting of his Life, written by himself. Together with humorous, moral and literary essays, chiefly in the manner of the Spectator. Among which are several not in any American edition”, p.74
Thomas Jefferson (2011). “The Papers of Thomas Jefferson, Retirement Series, Volume 7: 28 November 1813 to 30 September 1814”, p.248, Princeton University Press