Margaret Mary Mallett (1882 – 1959), who lived at Longwood House, and her daughters, Margaret Elizabeth Mallett (1905 – 1991) and Barbara Penelope Mallett Lock (1896 – 1978) donated 347 acres of land on Combe Down and Claverton Down including Rainbow Wood farm, Klondyke Copse, Fairy Wood and Bushey Norwood to the National Trust.