American politician (1811–1874) best known as a Radical Republican and a staunch opponent of slavery. On May 22, 1856, Sumner was famously assaulted and severely beaten in the Senate chamber by South Carolina congressman Preston Brooks, who had taken offense at Sumner’s strongly worded attack on the authors of the Kansas-Nebraska Act—one of whom, Senator Andrew Butler, was Brooks’s cousin. Sumner’s injuries were so severe that he was unable to attend sessions of Congress for the next three years. ALS, one page, 5 x 8, July 7, 1872. Letter addressed to “dear Hillard,” possibly making reference to an upcoming book on Abraham Lincoln. In part, “I am glad you are one to write the life of that remarkable lawyer and friend. I will see you on my return.” In fine condition, with some scattered light toning and soiling, small notation at top, and a few stray ink marks. R&R COA.