Mary Elizabeth Surratt (; 1820 or May 1823 – July 7, 1865) was an American boarding house owner in Washington, D.C., who was convicted of taking part in the conspiracy which led to the assassination of U.S. President Abraham Lincoln in 1865. Sentenced to death, she was hanged and became the first woman executed by the U.S. federal government. She maintained her innocence until her death, and the case against her was and remains controversial. Surratt was the mother of John Surratt, who was later tried in the conspiracy, but was not convicted. Wikipedia