This certainly isn't conclusive, I could only find one image that was suitable and even that wasn't a match.
The top right shows one image of Marion Ryan placed on top of yours layered at 50% opacity, using the top left of her face as you look at it. The second is the right side. The bottom obviously looks odd because that's the whole pic I've used. In my picture her head was tilted downwards and she was smiling. The jawline appears to be a perfect match, as do her eyes and hairline.
One thing I've been told I'm completely wrong about is the date, by all accounts her makeup and clothing aren't right for the time scale I mentioned. See what you think anyway and as I said this isn't me saying I've proved anything by doing this.
Pels.