Mary O'Hern
Mary O'Hern
Birth: 11 March 1886
North Adams, Massachusetts, USA
Death: 27 December 1996
Williamstown, Massachusetts, USA
Age: 110 years, 291 days
Country: United StatesUSA

Mary Ambrose O'Hern (11 March 1886 – 27 December 1996) was a validated American supercentenarian.


She was born in North Adams, Berkshire, Massachusetts, USA on 11 March 1886 as the daughter of Richard and Agnes McNamara O'Hern. She worked as a teacher for 50 years and retired as principal of the Freeman school in 1956. She never married.

Mary O'Hern died in Williamstown, Massachusetts, USA on 27 December 1996 at the age of 110 years, 291 days.


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