Passport Portraits of Yesteryear No.2

The passport photographs in today's documents are characterless approximations of the subject, formalised by the constrictive rules governing pose, and then pixilated and digitised into homogeneity.
It wasn't always like that.
Over the next few weeks I shall present to you a selection of portraits from my collection. 
Study them and imagine what the person's life was like.

Mademoiselle Renson, Belgian.

Living at 
86 Boulevard St. Germain, Paris.

7th June 1917.

Her country has been occupied by the Germans and she is now asking for permission to live in Paris.

I wonder where the rest of her family is?