Warren was born in Oakland, California in 1897. She was educated at the Spence School in New York City. She married George Warren in 1919. She and her husband founded the Preservation Society of Newport County to save Hunter House from demolition. She received a Cross of Knight Légion d'Honneur for her work on the Rochambeau Festival in 1954. The efforts of the Preservation Society of Newport lead former United States First Lady, Jacqueline Kennedy, to appoint Warren to the committee to restore the White House in 1961.[2]