Don't have any idea if this will help anyone at all but my boyfriend is buxton dumbleton born on 21 April 1981. His father is Gavin Dumbleton and his mother is maria Magrieta Dumbleton. His uncles are Desmond, Derek and Bertram.
Bertram and Desmond still own the Fairy Knowe hotel in Wilderness South Africa. The family has owned the hotel for generations.
Thought that might be of assistance. good luck to all of you.