High Quality Content by WIKIPEDIA articles! Mary Alden Osgood Childers, MBE (14 December 1875 – 1 January 1964) was an American-born Irish writer and Irish nationalist. She was the daughter of Dr. Hamilton Osgood and Margaret Cushing Osgood of Beacon Hill, Boston, Massachusetts. Her older sister was Gretchen Osgood Warren and she was married to the writer and Irish nationalist, Robert Erskine Childers. Her son Erskine Hamilton Childers, would be elected the fourth President of Ireland.