Sir Roger Warin Beaconsfield Onslow, 6th Bt. (1880-1931) (1880–1931) Parents William Wallace Rhoderic Onslow Octavia Katherine Knox-Gore Children John Vernon Onslow Ursula Joan Onslow Sir Richard Wilmot Onslow, 7th Bt. Siblings Gwendolen Muriel Onslow Denzil Arthur Willis Richard G. Onslow unknown Onslow William Gore Alanby Onslow Edith Doreen Onslow Ethel Nina Amy Onslow Gladys Harriette Maude Onslow Partners Mildred Wilmot