Born: July 2, 1880, Dublin, Ireland.
Died: January 19, 1931, Dublin, Ireland.
Buried: Glasnevin Cemetery, Dublin, Ireland.
Mary was the daughter of Charles Byrne and Mary Doran.
A linguist, she attended the Dominican Convent in Dublin, and the University of Ireland, where she graduated in 1905.
She worked for the Board of Intermediate Education, and helped compile the Catalog of the Royal Irish Academy.
She contributed to the Old and Mid-Irish Dictionary and Dictionary of the Irish Language, and wrote a treatise on England in the Age of Chaucer.
If you know where to get a good photo of Byrne (head & shoulders, at least 200×300 pixels),