On Mrs Graydon-Stannus:
Born Elizabeth Graydon Smith, she was, I recall, a granddaughter of Elizabeth Grant of Rothiemurchus, who wrote the still-in-print "Memoirs of a Highland Lady". As such she was a cousin of Lytton Strachey & Duncan Grant and was thus related to the Bloomsbury group. She married Stannus (see "Burke's Irish Gentry"). She was artistic herself, and a good singer. One of her daughters was Dame Ninette de Valois (born Edris Stannus), and one of her sons was Gordon Anthony (also born Stannus), the protrait and ballet photographer and sometime antique dealer (he once had a shop in Camden Passage and later worked in Brighton).
It was he who told me that Graystan glass had begun by accident and mistake. I recall that he was aware of Mrs Stannus's attempts to reproduce Waterford glass, and he suggested that since she liked the mistakes made while producing the glass, she encouraged them.