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Mary Surratt, the co-conspirator of John Wilkes Booth, was executed on July 7, 1865, for her role in the assassination of President Abraham Lincoln. She provided her boarding house as a meeting place for the conspirators and relayed messages for Booth. Surratt's conviction remains controversial, and some argue that she was innocent. Nonetheless, she stands as the first woman executed by the U.S. federal government.