There's a Mary Simpson pictured in the book Victorian Children by Graham Ovenden and Robert Melville published in 1972 in London by Academy Editions. She was 10 or 11 when her photo was taken in 1871, and apparently was born in 1860. She was also known as Minnie Rae and according to a note on the back of her photo supposedly identified herself as "Mrs. Berry." However, it appears she knew James Barrie, also born in 1860, who would later write Peter Pan and Wendy. She may have called herself "Mrs. Berrie," and been an inspiration for the character of Wendy.