Ruth Balfour British MD (d. 1967) Parents Elizabeth Balfour Gerald Balfour, 2nd Earl of Balfour Children John Balfour Anne Balfour Peter Balfour Nora Elizabeth Balfour Siblings Eve Balfour Robert Balfour, 3rd Earl of Balfour Lady Eleanor Balfour Lady Mary Balfour Lady Kathleen Balfour Partners Edward Balfour, 9th of Balbirnie