FOX, Christopher Graham. "An analysis of Abraham Lincoln's poetic Gettysburg Address" [online]. 2008-09-12 [cit. 2020-12-13]. Dostupné online.
history.com
The Gettysburg Address. history.com [online]. [cit. 2020-12-13]. Dostupné online. (anglicky)
state.gov
photos.state.gov
White Jr., Ronald C. The Words That Moved a Nation in: "Abraham Lincoln: A Legacy of Freedom", Washington, D.C.: U.S. Department of State – Bureau of International Information Programs, p. 58.
thoughtco.com
MCNAMARA, Robert. How the Emancipation Proclamation Ended Enslavement in the U.S.. ThoughtCo [online]. [cit. 2020-12-13]. Dostupné online. (anglicky)