Statistics for occurrence #1 of “Mr. Butler” in chapter 76 of C. Edwards Lester, Life and public services of Charles Sumner: Born Jan. 6, 1811. Died March 11, 1874.:

...emained at his desk engaged in writing. While so engaged, Brooks, whom he did not know, approached him and said: I have read your speech twice over, carefully. It is a libel on South Carolina and Mr. Butler , who is a relative of mine. While these words were passing from his lips he commenced a series of blows with a bludgeon upon the Senator's head, by which the latter was stunned, disabled and smitte...
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