Sibyl O'Neill (1902-1946) (1902–1946) Parents Arthur O'Neill Lady Annabel Crewe-Milnes Children Morna Annabel Buxton Mark Gerald Edward North Buxton Siblings Mary Louisa Hermione O'Neill Terence O'Neill Brian Arthur O'Neill Shane O'Neill, 3rd Baron O'Neill James Colin Crewe Quentin Crewe Partners Edward North Buxton