Historiography

Arnold, Matthew. General Grant by Matthew Arnold with a Rejoinder by Mark Twain. Kent, Ohio, and London, England: The Kent State University Press, 1995 (on Grant's Memoirs)
Bonekemper, Edward H. (April 2011). "The Butcher's Bill: Ulysses S. Grant Is Often Referred to as a 'Butcher,' But Does Robert E. Lee Actually Deserve That Title?". Civil War Times. 52 (1): 36–43. OCLC 67618265.
Diller, Daniel C. (1996).  Michael Nelson (ed.). Guide to the Presidency. New York: Routledge. ISBN 978-1-56802-018-1.
Ferraro, William M.. (January 2019). "Old and New Views of Ulysses S. Grant: The Soldier and The Man". Journal of Military History. 83 (1): 195–212.
Foner, Eric (November 2, 2012). "'The Man Who Saved the Union: Ulysses Grant in War and Peace' by H. W. Brands (book review)". The Washington Post. Washington, DC. ISSN 0190-8286. Archived from the original on November 10, 2013.
—— (March 28, 2015a). "Why Reconstruction Matters". The New York Times Opinion.
——— (July 23, 2015b). "Ulysses S. Grant Died 130 Years Ago. Racists Hate Him, But Historians No Longer Do". Huffington Post.
Hunt, Linda Lawrence (July 27, 2017). "'American Ulysses' writer Ronald C. White explains why Grant is so often misunderstood". The Christian Science Monitor. Boston, Massachusetts.
