- "Abraham Lincoln Quotes About Slavery (Including Sources)." Abraham Lincoln Quotes About Slavery (Including Sources). N.p., n.d. Web. 29 May 2015. <http://rogerjnorton.com/Lincoln95.html>. Quotes by Lincoln. Primary source.
- "Documents." Papers of George Washington. N.p., n.d. Web. 30 May 2015. <http://gwpapers.virginia.edu/documents/washingtons-first-annual-message-to-congress-and-congressional-responses/>. Primary source. George Washington papers/information/etc.
- "HarpWeek | Elections | 1860 Cartoons List." HarpWeek | Elections | 1860 Cartoons List. N.p., n.d. Web. 30 May 2015. <http://elections.harpweek.com/1860/cartoons-1860-list.asp?Year=1860>. Primary source. Political cartoons.
- "The Gettysburg Address." The Gettysburg Address. N.p., n.d. Web. 30 May 2015. <http://rmc.library.cornell.edu/gettysburg/good_cause/transcript.htm>. Primary Source. Gettysburg Address.
- "The Gettysburg Address by Abraham Lincoln." The Gettysburg Address by Abraham Lincoln. N.p., n.d. Web. 30 May 2015. <http://www.abrahamlincolnonline.org/lincoln/speeches/gettysburg.htm>. Secondary source. Info on the Gettysburg Address
- "The Trans-Atlantic Slave Trade Database Has Information on More than 35,000 Slave Voyages." Trans-Atlantic Slave Trade. N.p., n.d. Web. 29 May 2015. <http://www.slavevoyages.org/tast/index.faces>. Secondary source. Information on TAST.
- "Slavery in America." History.com. A&E Television Networks, LLC, n.d. Web. 6 May 2015. http://www.history.com/topics/black-history/slavery . Secondary source. Discusses the introduction of slavery in the United States.
- "American Revolution." History.com. A&E Television Networks, n.d. Web. 06 May 2015. Secondary Source. Shows facts, pictures and other data concerning the American Revolution. http://www.history.com/topics/american-revolution
- "American Civil War." History.com. A&E Television Networks, n.d. Web. 06 May 2015. Secondary source. Gives information, facts and date about the Civil War. http://www.history.com/topics/american-civil-war
- "The Constitution of the United States: A Transcription." National Archives and Records Administration. National Archives and Records Administration, n.d. Web. 29 May 2015. Transcript of constitution. Secondary source http://www.archives.gov/exhibits/charters/constitution_transcript.html