Grace Marks

Early Life and Immigration to Canada

Grace Marks was born around 1828 in Ulster, Ireland. She was one of eight children in a family headed by her father, John Marks, a stonemason. Her early life was marked by poverty and her father's reported alcoholism and abuse. The family lived in a region experiencing economic hardship during the pre-Famine period. In 1840, when Grace was twelve, the Marks family immigrated to Upper Canada aboard a sailing ship. Her mother died on the ship en route to Canada and was buried at sea, a common tragedy on such voyages. Upon arrival in Toronto, the family faced the challenges of establishing themselves as poor immigrants. Grace soon entered the workforce as a domestic servant in various households. She worked for several families in Toronto and the surrounding area, including the household of a Mr. and Mrs. Parkinson. Her work included cleaning, cooking, laundry, and other household chores typical for a maid. By the summer of 1843, she secured employment with Thomas Kinnear through a newspaper advertisement or an employment agency. Her wages as a servant were low, often less than two dollars a month, and her living conditions were often difficult, with long hours and little privacy.

The Kinnear Household and the Murders

Thomas Kinnear was a wealthy farmer who lived on Yonge Street north of Richmond Hill. He was a Scottish Canadian gentleman who owned a substantial home and farm located about sixteen miles outside of Toronto. His live-in housekeeper was Nancy Montgomery, whose full name was Hannah Nancy Montgomery. Contemporary accounts suggest the two were in a sexual relationship, which was considered scandalous for the time. In July 1843, James McDermott, a twenty-year-old Irish Catholic former soldier in a Canadian regiment, was hired as a manservant. Grace Marks, aged sixteen, was hired as a second domestic servant shortly after, on or about 3 July. The household had a clear class distinction between the employer and the servants, and the new servants had been in the household for only about three weeks when violence erupted. On Saturday, 29 July 1843, Thomas Kinnear returned home from a trip to Toronto. He was shot in the left side of his chest, likely with a pistol. Nancy Montgomery was hit on the head with an axe, likely a cooper's axe found at the scene, and subsequently strangled. Her body was hidden under a large washing tub in the cellar. An autopsy later performed by Dr. John King revealed that Montgomery was three to four months pregnant at the time of her death. The following day, neighbours became suspicious and discovered the bodies. The absence of the two servants and missing valuables, including a wagon, a horse, clothing, and silverware, pointed directly to their involvement.

Flight, Capture, and Conflicting Confessions

After the murders, Grace Marks and James McDermott fled the scene. They travelled to Toronto, possibly using Kinnear's horse and wagon, and then boarded a steamer, the Transit, to Lewiston, New York. Using the alias Mary Whitney, Marks attempted to evade capture alongside McDermott. Mary Whitney was the name of a friend of Marks's who had died previously. They took stolen goods from the Kinnear home, including clothing belonging to Nancy Montgomery and other valuables. Authorities, including Toronto police, tracked them to a waterfront tavern in Lewiston and arrested them on or about 1 August 1843. Both were returned to Toronto to stand trial for murder. In custody, both provided written confessions, but their accounts directly contradicted each other. McDermott insisted Marks was the mastermind, claiming she urged him to commit the murders and personally strangled Montgomery with a handkerchief. Marks asserted that McDermott was the sole violent perpetrator who threatened to kill her if she did not comply. She stated she only helped pack the stolen goods and was forced to accompany him. These conflicting stories created lasting ambiguity about the true distribution of guilt. The confessions were published in a contemporary trial pamphlet issued by George Walton.

The Trial, Media Frenzy, and Public Perception

The separate trials of James McDermott and Grace Marks for the murder of Thomas Kinnear were held in Toronto at the Home District Courthouse on 3 and 4 November 1843. The presiding judge was Chief Justice John Beverley Robinson. The proceedings became a major media spectacle covered extensively in newspapers like The Toronto Examiner and The British Colonist. Public fascination was fuelled by the gruesome details of the crime, the sexual impropriety of the Kinnear-Montgomery relationship, and the compelling figure of the young female defendant. The courtroom was overcrowded with spectators, raising genuine fears the floor might collapse under their weight. Newspaper coverage and public opinion were sharply divided on Marks's character and culpability. Some portrayals cast her as a manipulative femme fatale, noting she appeared in court wearing a dress belonging to the murdered Nancy Montgomery. Other accounts described her as a naive, frightened girl of 'rather good-looking' appearance who was coerced by an older, violent man. Witnesses noted she showed very little emotion, described as 'apathetic', throughout the proceedings. Both defendants were found guilty and sentenced to death by hanging. The jury appended a strong recommendation for mercy in Marks's case, citing her youth, her sex, and the possibility she acted under McDermott's influence.

Sentencing, Gender, and Incarceration

James McDermott was executed by hanging at the Toronto Gaol. Grace Marks's death sentence was commuted to life imprisonment by the Executive Council of the Province of Canada, based on the jury's plea for mercy. This different outcome is widely analyzed by historians as a prime example of Victorian assumptions about gender and criminal responsibility. Historian Susan E. Houston has noted the instinct was to believe the man was more in control and therefore more culpable. Marks began serving her life sentence at the Kingston Penitentiary on 19 November 1843. Her incarceration lasted almost thirty years. Prison life involved strict discipline, solitary confinement, and hard labour, such as sewing, laundry work, and knitting. From 4 May 1852 to 18 August 1853, she was transferred to the Provincial Lunatic Asylum in Toronto. The superintendent, Dr. Joseph Workman, reportedly suspected her of feigning mental illness, or 'malingering'. She was later returned to the penitentiary. Marks maintained a generally compliant and quiet demeanour throughout her imprisonment, which contributed to her eventual pardon. She was granted a pardon by the government of Sir John A. Macdonald and released on 7 August 1872.

Post-Release Life and Disappearance from History

Upon her release in 1872, Grace Marks was a woman in her mid-forties. The penitentiary records state she intended to move to upstate New York, likely to the city of Syracuse or its vicinity. She likely sought anonymity and a fresh start after almost three decades of confinement. No subsequent marriage records, death certificates, or census entries in the United States or Canada have been reliably linked to her under the name Grace Marks. Researchers have been unable to trace her under possible aliases, such as Mary Whitney or a married name. Some speculation suggests she may have married and changed her name, or she may have died not long after her release. The ultimate fate, specific location, and exact date of her death remain completely unknown. Her complete disappearance from the historical record adds a final layer of deep mystery to her life. The lack of information has fueled ongoing public and scholarly curiosity about her final years, making her story one of Canada's most enduring historical puzzles.

Cultural Legacy and Adaptations

The story of Grace Marks has ensured her a lasting place in Canadian cultural memory, transitioning from a sensational news story to a subject of artistic and scholarly interest. The first major literary treatment came from pioneer author Susanna Moodie, who included an account of Marks in her 1853 book Life in the Clearings Versus the Bush. Moodie visited the Kingston Penitentiary and wrote about meeting Marks, describing her appearance and demeanour. Margaret Atwood's 1996 novel Alias Grace won the Giller Prize and was shortlisted for the Booker Prize. Atwood conducted extensive research into the original trial documents and was fascinated by the contradictory witness testimony. Her novel creatively explores the ambiguities of the case, the nature of truth, and the constraints placed on women in the 19th century. The case continues to be studied by historians and legal scholars as a lens to examine 19th-century gender roles, class dynamics, and media sensationalism.

• Stage Play: A theatrical adaptation by Jennifer Blackmer premiered at the Rivendell Theater in Chicago on 1 September 2017. The play focuses on the psychological drama of the trial and Marks's memory.
• Television Miniseries: In 2017, a six-part CBC/Netflix miniseries aired. It was adapted by screenwriter Sarah Polley and directed by Mary Harron. It starred Sarah Gadon as Grace Marks and won multiple Canadian Screen Awards, including Best Limited Series and Best Actress for Gadon.
• Key Historical Source: The original trial proceedings were published in a pamphlet by George Walton titled The trials of James McDermott and Grace Marks at Toronto, Upper Canada, November 3rd and 4th 1843. This pamphlet includes the voluntary confessions of both defendants and portraits.
• Academic Analysis: Historian Constance Backhouse discusses the case in her work Petticoats and Prejudice: Women and Law in Nineteenth-Century Canada. The case is also examined in studies of 19th-century penology and the history of insanity defenses.
• Other Media: The story has been featured in numerous true crime publications, documentaries, and podcasts, reflecting ongoing public fascination with the unresolved questions of her guilt.

Key Documents and Historical Sources

The historical record of the Grace Marks case is preserved in several important contemporary documents and later analyses. The original trial proceedings were published in a pamphlet in 1843 by George Walton of the Transcript Office in Toronto. This pamphlet, often called the 'trial pamphlet', includes the voluntary confessions of both James McDermott and Grace Marks, the trial transcripts, and a description of the murders. Newspaper accounts from 1843 in papers like The Toronto Examiner, The British Colonist, and The Courier of Upper Canada provide extensive, if sometimes sensationalized, coverage of the investigation, capture, and trial. Susanna Moodie's 1853 book Life in the Clearings Versus the Bush offers a contemporary literary account based on her visit to the penitentiary. Moodie's account helped cement the case in the Canadian cultural imagination. In the modern era, Margaret Atwood's novel Alias Grace and its accompanying author's afterword have brought detailed scholarly and artistic scrutiny to the documents. Historical works like Constance Backhouse's Petticoats and Prejudice: Women and Law in Nineteenth-Century Canada and articles in academic journals like Histoire sociale / Social History provide critical academic context. These sources collectively allow researchers to trace the evolution of the Marks story from raw court record to cultural myth, while always circling back to the unresolved contradictions at its heart.

Questions about Grace Marks

What was Grace Marks convicted of?

Grace Marks was convicted of the murder of her employer, Thomas Kinnear, in November 1843. She was tried alongside James McDermott. The trial was held at the Home District Courthouse in Toronto. A separate trial for the murder of Nancy Montgomery was deemed unnecessary after their conviction for Kinnear's murder. Both were initially sentenced to death, but Marks's sentence was commuted to life imprisonment by the Executive Council.

How long was Grace Marks in prison?

Grace Marks was incarcerated for almost thirty years. She entered the Kingston Penitentiary on 19 November 1843 and was pardoned and released on 7 August 1872. During this period, she spent over a year at the Provincial Lunatic Asylum in Toronto from 4 May 1852 to 18 August 1853. Her prison labour included sewing and laundry work.

Did Grace Marks and James McDermott confess?

Yes, both provided written confessions following their arrest. Their accounts directly contradicted each other. McDermott claimed Marks masterminded the murders, urged him on, and strangled Nancy Montgomery with a handkerchief. Marks asserted that McDermott was the sole violent perpetrator who threatened her life. These confessions were published in George Walton's 1843 trial pamphlet.

Why was Grace Marks spared execution but not James McDermott?

The jury attached a strong recommendation for mercy for Grace Marks, citing her youth, her sex, and the possibility of coercion. Victorian gender stereotypes viewed young women as more likely to be influenced victims rather than rational instigators. This perception, analyzed by historians like Susan E. Houston, played a decisive role. McDermott was executed by hanging.

What happened to Grace Marks after her release?

After being pardoned in 1872, Grace Marks moved to upstate New York, likely Syracuse. She provided this destination to penitentiary authorities. After that, she disappeared from all known historical records. No reliable documents trace her life after this point, leaving her final years, potential marriage, and death a complete mystery.

What is Margaret Atwood's connection to the case?

Margaret Atwood authored the historical fiction novel Alias Grace in 1996, which is based on the life and trial of Grace Marks. Atwood's research for the book incorporated primary sources such as the original 1843 trial pamphlet from that year. Her novel went on to win the prestigious Giller Prize. This work was later adapted into a television miniseries in 2017 and also into a stage play that premiered in Chicago the same year.

Sources and further reading

• Grace Marks (Wikipedia)
• Grace Marks (thecanadianencyclopedia.ca)
• The Trial of Grace Marks, MRU Journal System (mrujs.mtroyal.ca)
• ALIAS GRACE: A Breakdown of True Events (cincyplay.com)
• The Mysterious Murder Case That Inspired Margaret ... (smithsonianmag.com)

Checked by the Nosy Mag desk. Last updated 2026-10-22.