Pottawatomie massacre (English Wikipedia)

Reynolds, David S. (2006). John Brown, Abolitionist: The Man Who Killed Slavery, Sparked the Civil War, and Seeded Civil Rights. New York: Vintage Books. Originally quoted in The London Quarterly and Holborn Review, Vol. 8, 1857, p. 529.

gilderlehrman.org

Doyle, Mahala (2013) [Nov 20, 1859], "Letter to John Brown" (PDF), 'Bleeding Kansas' and the Pottawatomie Massacre, 1856, Gilder Lehrman Institute of American History

Malin, James C. (August 1953). "Judge Lecompte and the 'Sack of Lawrence', May 21, 1856 (Part I)". Kansas Historical Quarterly. 20 (7): 465–494. Archived from the original on July 5, 2021. Retrieved July 11, 2007.
Watts, Dale E. (Summer 1995). "How Bloody Was Bleeding Kansas?" (PDF). Kansas History. 18 (2): 116–129. Archived (PDF) from the original on June 27, 2012. Retrieved April 5, 2013.

Malin, James C. (August 1953). "Judge Lecompte and the 'Sack of Lawrence', May 21, 1856 (Part I)". Kansas Historical Quarterly. 20 (7): 465–494. Archived from the original on July 5, 2021. Retrieved July 11, 2007.
Brown, Salmon (May 28, 1913), Letter to William Connelley, Ms., West Virginia Archives and History, Charleston, West Virginia, archived from the original on September 8, 2021, retrieved September 8, 2021{{citation}}: CS1 maint: location missing publisher (link)
Watts, Dale E. (Summer 1995). "How Bloody Was Bleeding Kansas?" (PDF). Kansas History. 18 (2): 116–129. Archived (PDF) from the original on June 27, 2012. Retrieved April 5, 2013.
Cutler, William G. (1883). History of the State of Kansas, containing a full account of its growth from an uninhabited territory to a wealthy and important state, of its early settlements, its rapid increase in population and the marvelous development of its great natural resources. Also, a supplementary history and description of its counties, cities, towns and villages, their advantages, industries, manufactures and commerce, to which are added biographical sketches and portraits of prominent men and early settlers. Chicago: A.T. Andreas. p. 131. More legibly here.
DeCaro Jr., Louis A. (April 27, 2012). "The Fool as Biographer". John Brown Today (blog). Archived from the original on July 5, 2021. Retrieved October 18, 2017.

Brown, Salmon (May 28, 1913), Letter to William Connelley, Ms., West Virginia Archives and History, Charleston, West Virginia, archived from the original on September 8, 2021, retrieved September 8, 2021{{citation}}: CS1 maint: location missing publisher (link)