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
Richard Jackson, Benjamin Franklin (1759). “An Historical Review of the Constitution and Government of Pennsylvania: From Its Origin, So Far as Regards the Several Points of Controversy, which Have, from Time to Time, Arisen Between the Several Governors of that Province, and Their Several Assemblies : Founded on Authentic Documents”, p.7
Benjamin Franklin (2017). “The Complete Works of Benjamin Franklin: Letters and Papers on Electricity, Philosophical Subjects, General Politics, Moral Subjects & the Economy, American Subjects Before & During the Revolution”, p.812, Madison & Adams