"An Additional Number of Letters to the Republican". Letters by the Federal Farmer (pseudonym of Richard Henry Lee), Letter XVIII, teachingamericanhistory.org. January 25, 1988.
Benjamin Franklin, William-Temple Franklin (1818). “Memoirs of the Life and Writings of (the Same), Continued to the Time of His Death by William Temple Franklin. - London, H. Colburn 1818”, p.270