Ann Marie Dube (May 1996). "The Declaration of Independence". A Multitude of Amendments, Alterations and Additions: The Writing and Publicizing of the Declaration of Independence, the Articles of Confederation, and the Constitution of the United States. National Park Service. Retrieved 1 July 2011.
Ann Marie Dube (May 1996). "Appendix D". A Multitude of Amendments, Alterations and Additions: The Writing and Publicizing of the Declaration of Independence, the Articles of Confederation, and the Constitution of the United States. National Park Service. Retrieved 12 July 2011.