JohnAdams:November 1755 – from the Diary of John Adams.In:Founders Online – The Adams Papers.U.S. National Archives,18.November 1755,abgerufen am 30.August 2026(englisch):„We had a severe Shock of an Earthquake. It continued near four minutes. I was then at my Fathers in Braintree, and awoke out of my sleep in the midst of it. The house seemed to rock and reel and crack as if it would fall in ruins about us. Chimnies were shatter’d by it within one mile of my Fathers house.“
Alan Berube, Jesus Leal Trujillo, Tao Ran, and Joseph Parilla:Global Metro Monitor. In: Brookings. 22.Januar 2015 (brookings.edu[abgerufen am 4.Juli 2018]).
M. Best, A. Katamba und D. Neuhauser:Making the right decision: Benjamin Franklin's son dies of smallpox in 1736. In: Quality & Safety in Health Care. Band16, Nr.6, Dezember 2007, S.478–480, doi:10.1136/qshc.2007.023465, PMID 18055894, PMC2653186(freier Volltext).
M. Best, A. Katamba und D. Neuhauser:Making the right decision: Benjamin Franklin's son dies of smallpox in 1736. In: Quality & Safety in Health Care. Band16, Nr.6, Dezember 2007, S.478–480, doi:10.1136/qshc.2007.023465, PMID 18055894, PMC2653186(freier Volltext).