The first installment of the deeper examination of Charles Sumner's life begins with his early years, including his close relationships with Henry Wadsworth Longfellow and Samuel Gridley Howe.

Research:

• "Sumner, Charles (1811-1874)." Encyclopedia of World Biography, Gale, 1998. Gale Academic OneFile, link.gale.com/apps/doc/A148425674/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=95485851. Accessed 31 Oct. 2025.
• “Roberts v. City of Boston, 5 Cush. 198, 59 Mass. 198 (1849).” Caselaw Access Project. Harvard Law School. https://case.law/caselaw/?reporter=mass&volume=59&case=0198-01
• “The Prayer of One Hundred Thousands.” https://www.senate.gov/artandhistory/history/resources/pdf/PrayerofOneHundredThousand.pdf
• Alexander, Edward. “The Caning of Charles Sumner.” Battlefields.org. 3/6/2024. https://www.battlefields.org/learn/articles/caning-charles-sumner
• Beecher, Henry Ward. “Charles Sumner.” Advocate of Peace (1847-1884) , MAY, 1874. Via JSTOR. https://www.jstor.org/stable/27905613
• Berry, Stephen and James Hill Welborn III. “The Cane of His Existence Depression, Damage, and the Brooks–Sumner Affair.” Southern Cultures , Vol. 20, No. 4 (WINTER 2014). Via JSTOR. https://www.jstor.org/stable/10.2307/26217562
• Boston African American National Historic Site. “Abiel Smith School.” https://www.nps.gov/boaf/learn/historyculture/abiel-smith-school.htm
• Boston African American National Historic Site. “The Sarah Roberts Case.” https://www.nps.gov/articles/the-sarah-roberts-case.htm
• Child, Lydia Maria. “Letters of Lydia Maria Child.” Houghton, Mifflin and Company. 1883. https://archive.org/details/lettersoflydiam00chil
• Commonwealth Museum. “Roberts v. The City of Boston, 1849.” https://www.sec.state.ma.us/divisions/commonwealth-museum/exhibits/online/freedoms-agenda/freedoms-agenda-8.htm
• Frasure, Carl M. “Charles Sumner and the Rights of the Negro.” The Journal of Negro History , Apr., 1928, Vol. 13, No. 2 (Apr., 1928). Via JSTOR. https://www.jstor.org/stable/2713959
• Gershon, Livia. “Political Divisions Led to Violence in the US Senate in 1856.” JSTOR Daily. 1/7/2021. https://daily.jstor.org/violence-in-the-senate-in-1856/
• History, Art and Archives. “South Carolina Representative Preston Brooks’s Attack on Senator Charles Sumner of Massachusetts.” U.S. House of Representatives. https://history.house.gov/Historical-Highlights/1851-1900/South-Carolina-Representative-Preston-Brooks-s-attack-on-Senator-Charles-Sumner-of-Massachusetts/
• Longfellow House Washington's Headquarters National Historic Site. “An Era of Romantic Friendships: Sumner, Longfellow, and Howe.” https://www.nps.gov/articles/an-era-of-romantic-friendships-sumner-longfellow-and-howe.htm
• Lyndsay Campbell; The “Abolition Riot” Redux: Voices, Processes. The New England Quarterly 2021; 94 (1): 7–46. doi: https://doi.org/10.1162/tneq_a_00877
• Mahr, Michael. “Sumner vs. Cane.” National Museum of Civil War Medicine. 5/24/2023. https://www.civilwarmed.org/sumner-vs-cane/
• Meriwether, Robert L. “Preston S. Brooks on the Caning of Charles Sumner.” The South Carolina Historical and Genealogical Magazine , Jan., 1951, Vol. 52, No. 1 (Jan., 1951). Via JSTOR. https://www.jstor.org/stable/27571254
• Mount Auburn Cemetery. “Charles Sumner (1811-1874): U.S. Senator, Abolitionist, & Orator.” https://mountauburn.org/notable-residents/charles-sumner-1811-1874/
• National Park Service. “Charles Sumner and Romantic Friendships.” https://www.nps.gov/articles/000/charles-sumner-and-romantic-friendships.htm
• Potenza, Bob. “Charles Sumner.” West End Museum. https://thewestendmuseum.org/history/era/west-boston/charles-sumner/
• Ruchames, Louis. “Charles Sumner and American Historiography.” The Journal of Negro History , Apr., 1953, Vol. 38, No. 2 (Apr., 1953). https://www.jstor.org/stable/2715536
• Senate Historical Office. “Senate Stories | Charles Sumner: After the Caning.” United States Senate. 5/4/2020. https://www.senate.gov/artandhistory/senate-stories/charles-sumner-after-the-caning.htm
• Sinha, Manisha. “The Caning of Charles Sumner: Slavery, Race, and Ideology in the Age of the Civil War.” Journal of the Early Republic , Summer, 2003, Vol. 23, No. 2 (Summer, 2003). Via JSTOR. https://www.jstor.org/stable/3125037
• Sumner, Charles. “Barbarism of Slavery.” 6/4/1860. https://dotcw.com/documents/barbarism_of_slavery.htm
• Sumner, Charles. “Freedom National; Slavery Sectional.” 8/26/1852. https://en.wikisource.org/wiki/Freedom_National;_Slavery_Sectional
• Sumner, Charles. “The equal rights of all.” Washington, Printed at the Congressional globe office. 1866. https://archive.org/details/equalrightsofall00sumn
• Tameez, Zaakir. “Charles Sumner: Conscience of a Nation.” Henry Holt and Co. 2025.
• United States Senate. "The Crime Against Kansas.” https://www.senate.gov/artandhistory/history/minute/The_Crime_Against_Kansas.htm
• United States Senate. “REPORT.” 5/28/1856. https://www.senate.gov/artandhistory/history/resources/pdf/SumnerInvestigation1856.pdf
• United States Senate. “The Caning of Senator Charles Sumner.” https://www.senate.gov/artandhistory/history/minute/The_Caning_of_Senator_Charles_Sumner.htm
• Various, “Southern Newspapers Praise the Attack on Charles Sumner,” SHEC: Resources for Teachers, accessed October 31, 2025, https://shec.ashp.cuny.edu/items/show/1548.