Ackerman, Kenneth. “An engraving of James A. Garfield’s assassination, published in Frank Leslie’s Illustrated Newspaper.” Digital Image. Smithsonian.com. Updated November 2018. Accessed April 2019. https://www.smithsonianmag.com/history/garfield-assassination-altered-american-history-woefully-forgotten-today-180968319/.
Cover of Dark Horse, 2003 by Kenneth Ackerman. Digital Image. Amazon. Accessed April 2019. https://www.amazon.com/Dark-Horse-Surprise-Election-Political/dp/B000Q1I48I.
Cover of Destiny of the Republic, 2011 by Candice Millard. Digital Image. Good Reads. Accessed April 2019. https://www.goodreads.com/book/show/10335318-destiny-of-the-republic.
Cover of Murdering the President, 2016 by Fred Rosen. Digital Image. Amazon. Accessed April 2019. https://www.amazon.com/Murdering-President-Alexander-Graham-Garfield/dp/1612347681.
Cover of Our Martyred President by James McCabe, 1881. Digital Image. Amazon. Accessed April 2019. https://www.amazon.com/Our-Martyred-President-Services-Assassination/dp/1163993867.
Cover of The Trial of the Assassin, 1968 by Charles Rosenberg. Digital Image. Amazon. Accessed April 2019. https://www.amazon.com/Trial-Assassin-Guiteau-Psychiatry-Gilded/dp/0226727173.
Markel, Howard. “Death of General James A. Garfield. Lithograph by Currier & Ives. From the Library of Congress.” Digital Image. September 2016. Accessed April 2019. https://www.pbs.org/newshour/health/dirty-painful-death-president-james-garfield.
Reznick, Jeffrey S. and Lenore Barbian. “The Attack on the President’s Life, from Library of Congress.” Digital Image. U.S. National Library of Medicine. July 2013. Accessed April 2019. https://circulatingnow.nlm.nih.gov/2013/07/02/the-president-is-somewhat-restless-reenacting-the-summer-of-1881-and-the-days-following-the-assassination-of-president-james-a-garfield/.