Mary Sibbet Copley

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Mary Sibbet Copley
Mary Sibbey Copley (ca. 1920).png
Copley circa 1920
Born (1843-06-19)June 19, 1843
Armstrong County, Pennsylvania
Died June 6, 1929(1929-06-06) (aged 85)
Pittsburgh, Pennsylvania
Cause of death Pneumonia
Resting place Allegheny Cemetery
Occupation Philanthropist
Spouse(s) William Thaw, Sr. (m. 1867–89)
Children Harry Kendall Thaw
Alice Cornelia Thaw
Parent(s) Josiah Copley
Relatives Russell William Thaw (grandson)

Mary Sibbet Copley (June 19, 1843 – June 9, 1929) was an American philanthropist and charity worker.[1]


She was born in Armstrong County, Pennsylvania on June 19, 1843 to Josiah Copley. In 1867 she married William Thaw, Sr.[2][3]

She died on June 9, 1929 of pneumonia.[4] She was buried in Allegheny Cemetery in Pittsburgh.


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