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.421
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.401
Philander D. Chase, George Washington, Frank E. Grizzard, Edward G. Lengel, Dorothy Twohig (2006). “The Papers of George Washington: May-June 1778”, University of Virginia Press
John Adams, Charles Francis Adams (1856). “The Works of John Adams, Second President of the United States: With a Life of the Author, Notes and Illustrations”, p.45