"The Radical Republicans". American Battlefield Trust. June 30, 2021. Retrieved February 3, 2024. https://www.battlefields.org/learn/articles/radical-republicans
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Foner, Eric (1988). Reconstruction: America's Unfinished Revolution, 1863–1877. New York: Harper & Row. pp. 241–247. /wiki/Eric_Foner
"The Radical Republicans". American Battlefield Trust. June 30, 2021. Retrieved February 3, 2024. https://www.battlefields.org/learn/articles/radical-republicans