# Mary Surratt was an innocent widow, half-blind and pious, railroaded by a military court and hanged for a plot she never knew, or perhaps put to death to punish the son who got away

**No verdict.** The established facts are not in question: Mary Surratt kept the Washington boarding house where the Lincoln conspirators met, owned the Surrattsville tavern where two carbines were hidden, was tried by a military commission, convicted, and hanged on 7 July 1865, the first woman put to death by the United States federal government. The claim we weigh is the contested one: that she was innocent, or at most an unwitting bystander, and was wrongly, even vindictively, executed. Historians are genuinely split. One side reads the house, the tavern, and her errand on the day of the murder as the acts of a knowing accomplice; the other reads the same facts through a drunk and self-interested pair of witnesses, an unconstitutional military court, and a vengeful national mood. The evidence we can verify is fixed; what it proves is not. On the question of her guilt, the verdict is disputed.

Category: Government & Intelligence · Era: 1860s · First circulated: Doubt about the sentence was voiced at the time: five of the nine commissioners who convicted her signed a plea for clemency. The wrongful-execution reading grew through the decades, was sharpened by the 1866 Ex parte Milligan ruling and her son's 1867 acquittal, and reached a wide modern audience with Robert Redford's 2010 film The Conspirator. · Believed by: A broad public sympathy rather than a fringe, shared by many popular historians and legal writers who see the trial as a wartime miscarriage of justice, and countered by scholars who read her as a witting facilitator. The split runs through the mainstream of the subject.
URL: https://theconspiratory.com/theory/mary-surratt

## Summary
Mary Surratt kept a boarding house at 604 H Street in Washington (older accounts give the period address as 541), and it was there that John Wilkes Booth and his circle, including her son John, met to plot first the kidnapping and then, in Booth's hands, the murder of Abraham Lincoln. On the day of the assassination she rode to her tavern at Surrattsville, where two carbines lay hidden, and a witness later swore she told the tavern keeper to have the shooting irons ready that night. Arrested days later, she was tried by a military commission, convicted, and on 7 July 1865 became the first woman executed by the federal government. This file weighs the enduring claim that she was innocent, an unwitting widow railroaded by a court that should not have existed, or even hanged to punish the son who escaped. It keeps the settled facts of the case apart from that contested reading, which historians still cannot agree on, and rates the question of her guilt as disputed.

## The claim
That Mary Surratt was not a knowing conspirator in the assassination of Abraham Lincoln but an innocent or unwitting woman, convicted on the word of compromised witnesses by an unconstitutional military tribunal amid anti-Southern and anti-Catholic feeling, and executed either as a miscarriage of justice or deliberately, to punish or draw out her fugitive son John Surratt.

## Origin and timeline
- 1852-1853: The Surratt family develops land in Prince George's County, Maryland, where a tavern, inn, and post office grow into the crossroads settlement of Surrattsville, now Clinton. The tavern later doubles as a way station on the Confederate courier line through southern Maryland.
- 1862-08: John Surratt Sr. dies, leaving Mary a widow managing property and debts. Her son John Surratt Jr. soon takes up work as a Confederate courier and spy, carrying dispatches through the same country his family's tavern serves.
- 1864-11: Mary leases the Surrattsville tavern to John M. Lloyd, a former Washington policeman, and moves to the city, opening a boarding house at 604 H Street. Booth, John Surratt, Lewis Powell, George Atzerodt, David Herold, and the boarder Louis Weichmann come and go; the house becomes the meeting place for Booth's plot to kidnap Lincoln.
- 1865-04-14: Mary rides to Surrattsville, driven by Weichmann, on what her defenders call a routine debt errand. She carries a package from Booth, and, by Lloyd's later testimony, tells him to have the shooting irons, two carbines hidden earlier, ready that night. Hours after Booth kills Lincoln, he and Herold stop at the tavern and collect one.
- 1865-04-17: Detectives come to arrest Mary. During the search Lewis Powell appears at the door in a makeshift disguise, claiming to be a hired ditch-digger; asked whether she knows him, Mary says she does not, though he had lodged and plotted under her roof. Both are arrested.
- 1865-05-1865-06: A nine-member military commission, not a civilian jury, tries eight defendants before some 361 witnesses. The case against Mary rests on two men: John Lloyd, on the carbines and the April 14 message, and Louis Weichmann, on the traffic of plotters through her house. Her lawyers argue she is a devout, half-blind widow, that Lloyd was drunk and testified under threat, and that Weichmann spoke to save himself.
- 1865-06-30: The commission convicts Mary and sentences her to hang. Five of the nine members sign a petition urging President Andrew Johnson to commute the sentence to life imprisonment on account of her age and sex; it is attached to the file sent to the White House.
- 1865-07-07: Mary Surratt, Lewis Powell, David Herold, and George Atzerodt are hanged in the yard of the Old Arsenal Penitentiary. A last-minute writ of habeas corpus is suspended on the president's order. Alexander Gardner photographs the scaffold. Mary is the first woman executed by the United States federal government.
- 1867: John Surratt Jr., captured abroad, is tried, but now in a civilian court after the Supreme Court's Ex parte Milligan decision. On overlapping facts the jury hangs, eight for acquittal to four for conviction, and he later goes free, an outcome many contrast bitterly with his mother's death.
- 2010-2011: Robert Redford's film The Conspirator dramatizes the trial as a wartime miscarriage of justice, with Mary defended by the young lawyer Frederick Aiken, and revives popular argument over whether she should have hanged.

## The evidence, claim by claim
- Claim: The conspiracy incubated in her boarding house, so the landlady must have known what it was.
  Evidence: The house on H Street was undeniably the hub: Booth, Powell, Atzerodt, Herold, and her own son met there, and a keeper of a small boarding house is well placed to know her long-term lodgers. That is the heart of the suspicion, and it is not nothing. But proximity is not knowledge of a specific plan. Even scholars who think she aided the earlier scheme to kidnap Lincoln divide on whether she knew of the shift to murder, which is the crime she hanged for. A house full of plotters proves she was near the plot, not that she shared its final purpose.
- Claim: John Lloyd swore she told him to ready the hidden carbines on the day of the murder, placing her inside the operation.
  Evidence: This is the strongest thread against her, and also the most contested. Lloyd, her tavern tenant, testified that on April 14 Mary told him to have the shooting irons ready that night, and that Booth and Herold collected one during their escape. If true, it moves her from social orbit to active logistics on the very day. But Lloyd was a heavy drinker, was himself under arrest and facing the gallows, and gave the account only after interrogation the defense said amounted to threats. How much weight a witness in his position can bear is exactly what historians still argue.
- Claim: When Powell appeared at her door and she denied knowing him, that lie betrayed her guilt.
  Evidence: Prosecutors made much of the moment, and it reads badly at first glance. But the scene cuts more than one way. Powell arrived at night, filthy and disguised as a laborer with a pickax, at a house being searched; Mary was known to have poor eyesight, and the gaslight was dim. A failure to place a lodger out of context, under arrest and afraid, is consistent with either guilt or ordinary confusion. It is suggestive, not decisive.
- Claim: A lawful military commission weighed the evidence and convicted her, so the verdict stands as justice.
  Evidence: The court itself is a large part of the dispute. A civilian was tried without a jury, under relaxed rules of evidence, with a two-thirds vote enough to send her to the gallows, weeks after the president's murder. In Ex parte Milligan the next year the Supreme Court held that trying civilians by military tribunal where the civil courts are open is unconstitutional, and Washington's courts were open in 1865. When her son faced the same facts before a civilian jury in 1867, the result was a hung jury and freedom. That contrast is why many doubt the conviction would have survived an ordinary trial.
- Claim: Five of her own judges asked the president to spare her, which shows even the court doubted she deserved to die.
  Evidence: The clemency petition is real: a majority of the commissioners signed a plea to commute her sentence to life, citing her age and sex. It is genuine evidence of unease inside the tribunal. It is not, however, a finding of innocence; mercy on grounds of age and sex is not a judgment that the evidence failed. What the petition establishes is doubt, not exoneration, and the fate of that plea, whether President Johnson ever saw it, remains its own unresolved mystery.

## Why people believe it
- The wronged-innocent story is almost archetypal. A devout, widowed, half-blind mother sent to the gallows on a drunk's word maps onto deep cultural scripts about martyrs and about women punished for the crimes of their men, and it asks little extra evidence to feel true.
- Her own judges signaled doubt. When five of nine commissioners sign a mercy plea, later readers reasonably infer the verdict was shaky, and that single fact does more than any argument to keep the wrongly-hanged reading alive.
- The law seemed to change its mind a year later. Ex parte Milligan appeared to condemn the very kind of court that condemned her, and her son walked free in 1867, so history looks as if it reversed itself just too late to save her.
- The son got away and the mother did not. John Surratt was arguably the deeper Confederate operative, yet he escaped abroad and was never convicted while his mother hanged, an asymmetry that invites the idea she paid his debt or was held as bait.
- The milestone guarantees retelling. As the first woman executed by the federal government, her case is revisited again and again, and each retelling puts the question of whether she deserved it back at the center.

## Open questions
- Did President Johnson actually see the clemency petition? Judge Advocate General Joseph Holt said he presented it; Johnson insisted he never saw it. No clean documentary proof settles it, and the answer bears on whether her death was an oversight, a decision, or something worse.
- Did she know the plot had shifted from kidnapping to murder? Even historians who accept that she aided the abduction scheme divide on whether she knew of, or supported, the assassination itself, and complicity in one is not complicity in the other.
- How much can John Lloyd's testimony bear? Given his drinking, his own jeopardy, and the conditions under which he talked, the reliability of the shooting-irons account, the hinge of the case against her, is still argued.
- Would a civilian jury have convicted her? The 1867 hung jury for her son, on overlapping facts in a calmer courtroom, fuels the counterfactual, but a counterfactual is not an answer.

## Sources
- The Lincoln Conspirators, National Park Service, Ford's Theatre NHS: https://www.nps.gov/foth/learn/historyculture/the-lincoln-conspirators.htm
- The Trial of the Conspirators, Ford's Theatre: https://fords.org/lincolns-assassination/investigating-the-assassination/the-trial-of-the-conspirators/
- Mary Surratt: A Biography, Famous Trials (Douglas O. Linder): https://famous-trials.com/lincoln/2154-marysurratt
- Mary Surratt, Encyclopaedia Britannica: https://www.britannica.com/biography/Mary-Surratt
- The Family Plot to Kill Lincoln, Smithsonian Magazine: https://www.smithsonianmag.com/history/the-family-plot-to-kill-lincoln-2093807/
- President Johnson claimed to not have seen a clemency petition for Mary Surratt, The Washington Post: https://www.washingtonpost.com/news/house-divided/wp/2015/07/07/president-johnson-claimed-to-not-have-seen-a-clemency-petition-for-mary-surratt/
- Ex parte Milligan, Encyclopaedia Britannica: https://www.britannica.com/event/Ex-parte-Milligan
- Alexander Gardner, execution photographs, Incidents of the War, Library of Congress: https://www.loc.gov/item/2002696053

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