About Mary Cowan

Mary A. Cowan, known as The Borgia of Maine, was an American serial killer who poisoned two husbands and four children between 1884 and 1894, and attempted to murder a third husband. Convicted of killing her step-son Willis Cowan in September 1894, Cowan was sentenced to life imprisonment and sent off to the Maine State Prison, where she died a few years later from an unspecified illness.

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Occupation: serial killer
Born: March 8, 1863
Died: September 17, 1898

Facts from Wikidata (CC0).

Mary Cowan

American serial killer

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About Mary Cowan

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Occupation: serial killer
Born: March 8, 1863
Died: September 17, 1898

Facts from Wikidata (CC0).

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Mary Cowan across IJR

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