(en) Henry Julian Abraham, Justices, Presidents, and Senators : A History of the U.S. Supreme Court Appointments from Washington to Bush II, Rowman & Littlefield, , 439 p. (ISBN978-0-7425-5895-3, lire en ligne), p. 88-91.
(en) Robert J. Rayback, Millard Fillmore: Biography of a President, Pickle Partners Publishing, (1re éd. 1959) (ISBN9781786257123, lire en ligne).