Verda and Mary look like they had a wonderful bond established!!! This photo was most likely taken about 1906. Verda was about 2 years old and Mary was about 18 years old. These two girls are actually cousins. When Mary's mother, Emma Jane Coleman Wilson, died at Mary's birth, Mary and her older sister, Jane, went to live with their grandparents, George and Jane Smith Coleman. Mary's uncle Alexander was 18 years old when the two girls came to live with their grandparents and aunts and uncles, so Mary would have bonded like a sibling to Alexander.
Mary came to Idaho in 1906 to help her aunt and uncle, Annie and Alexander Smith Coleman, with their store that they owned in Thomas, Idaho. Verda is the third child of Annie and Alexander.
It was at the store in Thomas that Mary met her future husband, Neils Anderson, and they married in 1908.