oil on canvas
Dorothy Drew was Gladstone's grand-daughter.
She was still alive in the 1970's but told a researcher she could only remember the mice under the studio floor!
compare this with this old print:
I can't find a biography of Dorothy but as a child she seems to have had rather a reputation as an 'enfant terrible'.
Nor can I unfortunately trace the finished picture, though there is a reference to it in Burne-Jones by O. von Schleinitz, 1901, p. 113