Unknown lady

I have a picture of her also I think. She is for sure part of the Shumway family. Shown with husband and son & daughter and written on the back it says Ada Snow & family, daughter of Great Aunt Amy and Uncle Fayette Snow. taken @ C. Dunklee of Chapman St. Greenfield, MA. Great Aunt Amy was a Goodell and I think the sister of Olive Irene Goodell who married Chandler Clark Shumway 4/22/1866 and had my grandmother Lottie Irene Shumway who married William Burby 6/22/1898