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Female Mary O'Brien Click to view Mary O'Brien in the family tree

Mary was born in 1680.  Mary's father was William O'Brien and her mother was Margaret O'Brien.  Her paternal grandfather was William O'Brien and her paternal grandmother is Margaret Boyle; her maternal grandfather is James O'Brien. She has three half-brothers named William, Charles and James.


Mary's family with Robert Fitzgerald

They had a son named James.


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