Gretchen Osgood Warren was an American actress, singer, and poet. She was the wife of Fiske Warren. The daughter of Dr. Hamilton Osgood and Margaret Cushing Osgood of Beacon Hill, Boston, Massachusetts, her younger sister was Mary Alden Childers, the wife of writer and Irish nationalist Erskine Childers. Her nephew Erskine Hamilton Childers served as the fourth President of Ireland from 1973 to 1974.

Mary Alden Childers, known as Molly Childers, was an American-born Irish writer and nationalist. A daughter of Dr Hamilton Osgood and Margaret Cushing Osgood of Beacon Hill, Boston, Massachusetts, her older sister was Gretchen Warren. She married fellow Irish writer and nationalist, Erskine Childers. Their son, Erskine Hamilton Childers, became the fourth President of Ireland.