Abigail Adams, John Adams, L. H. Butterfield, Marc Friedlaender, Mary-Jo Kline (1975). “The Book of Abigail and John: Selected Letters of the Adams Family, 1762-1784”, p.173, UPNE
Walter Savage Landor, John Forster, Charles George Crump (1891). “Imaginary Conversations: Dialogues of sovereigns and statesmen. Dialogues of literary men”