«Mrs. M. S. Rutherfurd Wed To F. L. Sprague», The New York Times (New York City), 27 de noviembre de 1939.. Margaret was the daughter of Anne Harriman, the second wife of William Kissam Vanderbilt, and her second husband, Lewis Morris Rutherfurd, son of the astronomer Lewis Morris Rutherfurd. After divorcing Dukes, Margaret Rutherfurd successively married Charles Michel Joachim Napoléon, Prince Murat, and Frederick Leybourne Sprague