The sign besides Prisoner's name and address looks very much like the Hebrew letter "aleph" in script and cursive. JMO
Ok, based on this sign and her anthropologic features I think she might be a Sepharade Jewish.
Sepharad Jewish are Jewish from Mediterranean countries: North Africa, Spain, Portugal, Italy, Greece.
They were expelled in 1492 from Spain by Isabel the Catholic at the time of the Reconquista.
ETA : Ashkenazim are of Eastern Europe : Germany, Austria, ex-USSR States.
The intense dark eyes and hair, her light brown, maybe olive (difficult to say from the photo) skin, makes me think of this possibility. You can also confuse them with Latino/Hispanic.
Or she might be a Jewish woman of South America, immigrated in Europe or Canada.
In those days, there were quite a number of secular Jews in Europe.
I doubt she was from Eastern Europe, or maybe siberia. But IMHO, it's unlikely.