William Robert Macarthur-Onslow (born 1945) (b. 1945) Parents Lois Ruth Greene Richard Walton Macarthur-Onslow Children Felicity Georgina Macarthur-Onslow Jane Belinda Macarthur-Onslow Siblings Richard Bowring Macarthur-Onslow John Walton Macarthur-Onslow Partners Sarah Bettington