"Discourses on Davila : A Series of Papers on Political History first published in the Gazette of the United States". Book by John Adams, No. 13, 1805.
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.174, UPNE
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.8
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.449
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.437
Quoted in Susan Boylston Adams Clark, Letter to Abigail Louisa Smith Adams Johnson, 9 July 1826. In fact, Jefferson had died a few hours earlier on this, the fiftieth anniversary of the Declaration of Independence. Eliza Quincy, in her 1861 memoirs, wrote that the last words Adams spoke distinctly were "Thomas Jefferson"; the rest of the sentence, she noted, was inarticulate. See Jefferson 55
John Adams, Charles Francis Adams (1854). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.418
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.462
John Adams, Charles Francis Adams (1851). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.480
John Adams, Charles Francis Adams (1850). “The Works of John Adams, Second President of the United States: Diary, with passages from an autobiography. Notes of debates in the Continental Congress, in 1775 and 1776. Autobiography”, p.511