Elizabeth Macarthur-Onslow (1840–1911) property owner and businesswoman in New South Wales, Australia (1840–1911) Parents James Macarthur Children George Macarthur-Onslow Emily Susan Macarthur-Onslow James Macarthur-Onslow Arthur John Macarthur-Onslow Arthur Macarthur-Onslow Arthur William Macarthur-Onslow Rosa Sibella Macarthur Onslow Partners Arthur Alexander Walton Onslow