↑ "Declaring Independence", Revolutionary War, Digital History, University of Houston. From Adams' notes: "Why will you not? You ought to do it." "I will not." "Why?" "Reasons enough." "What can be your reasons?" "Reason first, you are a Virginian, and a Virginian ought to appear at the head of this business. Reason second, I am obnoxious, suspected, and unpopular. You are very much otherwise. Reason third, you can write ten times better than I can." "Well," said Jefferson, "if you are decided, I will do as well as I can." "Very well. When you have drawn it up, we will have a meeting.""
↑ Hellenbrand (1990), The Unfinished Revolution: Education and Politics in the Thought of Thomas Jefferson, tr. 70
↑ Ackerman, Bruce (2005). The Failure of the Founding Fathers: Jefferson, Marshall, and the Rise of Presidential Democracy. Cambridge: The Belknap Press of Harvard University Press. tr. 106. ISBN 0674018664.
↑ John Hope Franklin, Race and History: Selected Essays 1938–1988 (Louisiana State University Press: 1989) p. 336 and John Hope Franklin, Racial Equality in America (Chicago: 1976), tr. 24-26
↑ Annette Gordon-Reed, Thomas Jefferson and Sally Hemings: An American Controversy, University of Virginia Press, 1998 (reprint, with new foreword, first published 1997), các trang 40–41, 210–223
