When I saw this photograph at the antique shop, I had to have it. This woman has a rather typical dress, but her hairstyle and the decorative element on her breast are not typical. As you look closely, you can see feathers and beads on the dress. That coupled with the obvious braid made me wonder if this woman is a Native American, what back in the day would have been termed an Indian.
The photographer was Henry Shurtleff in Amboy, IL. I found two additional references for this photographer both dated in the 1880s.