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Unsolved case · 1879

Killing of Mary Gallagher

UNSOLVED
Updated
Updated Jul 14, 2026
File:Montreal - Scene of the Gallagher Murder, William Street.jpgFile:Montreal - Scene of the Gallagher Murder, William Street.jpgCredit: Canadian illustrated news, 12 juillet 1879Public domainSource

The short answer

Killing of Mary Gallagher in brief

Mary Gallagher, a 19th-century Irish-Canadian woman, was killed by decapitation in the Griffintown neighbourhood of Montreal on 27 June 1879.

Key facts

Year
1879
Place
Griffintown, Montreal, Quebec, Canada
Status
UNSOLVEDUnsolved
Victim
Mary Gallagher
Outcome
No conviction on file

The coverage index

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The case file

What happened

Mary Gallagher was an Irish-Canadian woman living in the 19th century in Griffintown, a then Irish-dominant neighbourhood of Montreal, Quebec. On 27 June 1879, Gallagher was killed via decapitation in Griffintown.

In the years since her death, Mary Gallagher has become a significant figure in Montreal folklore. Persistent local legend holds that her spirit haunts the Griffintown area, and this ghost story has continued into the present day, generating ongoing public and media interest in her case long after the events of 1879.

No individuals have been named as charged, convicted, acquitted, or exonerated in connection with Mary Gallagher's death based on the material reviewed.

1 dated entry · 1879

Timeline

  1. Mary Gallagher is killed via decapitation in Griffintown, Montreal, Quebec.

1 named in this file

People

Victims first. Every legal label is set from public records and court outcomes, not from the prose.

  • Mary Gallagher

    VICTIM

    19th-century Irish-Canadian woman killed by decapitation in Griffintown, Montreal, on 27 June 1879.[2]

2 cited

Sources

Coverage is not a source: every fact in this file rests on the records below.

  • 1 Press
  • 1 Encyclopedic
  1. Contemporaneous coverage — concordia.ca

    Pressconcordia.caAccessed Jul 10, 2026

  2. Murder of Mary Gallagher

    EncyclopedicWikipediaAccessed Jul 10, 2026

Trust

Record history

Corrections
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