Photograph of a girl identified as the reverse as Jean Agnes Simpson at the age of 5 years. The photograph was taken by the studio of John M. Flint of 331 Stanstead Road, Catford, S.E., London, England.
Not much comes up online when searching "Jean Agnes Simpson" in quotes. There's a Jean Agnes Simpson buried in the Rookwood Catholic Cemetery at Rookwood, New South Wales, Australia, who died in 1992 at the age of 76. Her stone mentions "Sister & Sister-in-Law of Doug & May".