A new family mystery!

I was working on my Christmas project for my family.  I wanted to scan a photo of my sister-in-law when she was about three years old.  When I opened the frame I found this photo behind the photo of Margaret.  I think this photo has been hiding since about 1945.  There wasn’t a name or date on the back of the photo.  The only clue, it looks like she is wearing a wedding ring.  Grandma Scanlon was a Blackstone, so she might be one of Ella’s sisters, aunts or cousin. Ella was one of five daughters of William Blackstone and Mary Elizabeth France. Grandma Ella died in 1969, so I now have a mystery to work on.AuntT