Oates (December 1980), The Slaves Freed, American Heritage Magazine Oates, Stephen B. (decembrie 1980). „The Slaves Freed”. American Heritage Magazine. 32 (1). Accesat în .
Williams (December 1958), Investigation: 1862 Williams, T. Harry (decembrie 1954). „Investigation: 1862”. American Heritage Magazine. 6 (1). Accesat în .
Reynolds, Robert L. (decembrie 1960). „Seward's Wise Folly”. American Heritage. 12 (1). Accesat în .
Charles Sumner, Freedom National; Slavery Sectional: Speech of Hon. Charles Sumner… (Boston: Ticknor, Reed and Fields, 1852), available online, accessed June 24, 2011
Corning, Amos Elwood (). Hamilton Fish. Lamere Pub. Co. pp. 59–84.
"Charles Sumner." Dictionary of American Biography Base Set. American Council of Learned Societies, 1928–1936. Farmington Hills, MI: Gale, 2009. available online
Michael William Pfau, "Time, Tropes, and Textuality: Reading Republicanism in Charles Sumner's 'Crime Against Kansas'", Rhetoric & Public Affairs vol 6 #3 (2003) 385–413, quote on p. 393 online in Project MUSE
jstor.org
The relationship between Brooks and Butler is often reported inaccurately. "In reality, Brooks's father Whitfield Brooks, and Andrew Butler were first cousins." Mathis, Robert Neil (octombrie 1978). „Preston Smith Brooks: The Man and His Image”. The South Carolina Historical Magazine. 79 (4): 296–310. JSTOR27567525.
Stanley Coben, "Northeastern Business and Radical Reconstruction: A Re-examination", Mississippi Valley Historical Review Vol. 46, No. 1 (Jun. 1959), pp. 67–90 in JSTOR
Gilbert Osofsky, "Cardboard Yankee: How Not to Study the Mind of Charles Sumner", Reviews in American History Vol. 1, No. 4 (Dec. 1973), pp. 595–606 in JSTOR quotes are in Osofsky's words on pp. 595, 596
Foner (1983), The New View Of Reconstruction, American Heritage Magazine(d) Foner, Eric (). „The New View Of Reconstruction”. American Heritage Magazine. 34 (6).
Wikisource:Congressional Globe February 23, 1865, Congressional Globe, February 23, 1865. Also quoted on page 224 in Finkleman, Paul (ed.) (1997). Dred Scott vs. Sandford: A Brief History with Documents. (The Bedford Series in History and Culture.) Palgrave Macmillan. ISBN: 0-312-12807-X.