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.79, UPNE
William Shakespeare, Thomas Bowdler (1850). “The Family Shakspeare, in One Volume: In which Nothing is Added to the Original Text, But Those Words and Expressions are Omitted which Cannot with Propriety be Read in a Family”, p.136