| June 19, 1843 (1843-06-19) Armstrong County, Pennsylvania|
Russell William Thaw (grandson)
June 6, 1929, Pittsburgh, Pennsylvania, United States
William Thaw, Sr. (m. 1867)
Margaret Copley Thaw, Harry Kendall Thaw, Alice Cornelia Thaw
Harry Kendall Thaw, Russell William Thaw, Evelyn Nesbit
Russell William Thaw
Mary Sibbet Copley Wikipedia
Mary Sibbet Copley (June 19, 1843 – June 9, 1929) was an American philanthropist and charity worker.
She was born in Armstrong County, Pennsylvania on June 19, 1843 to Josiah Copley. In 1867 she married William Thaw, Sr.
She died on June 9, 1929 of pneumonia. She was buried in Allegheny Cemetery in Pittsburgh.