Evra is actually 8 years old in the story she is currently in.
This is her, as an adult.
I had this beautiful image of her in my head, I had to flesh it out. She is a historian; hint, the old books.
Long story short:
She was orphaned in the streets of her city, as a team of assassins destroyed the city. Her parents were murdered in front of her eyes, and she was saved.
Evra and art is mine,
Elites belong to 343/Bungie