Pictures In The Attic

The world seems a mad, mad place right now. On Friday afternoon, Bob was shifting things around in the lounge, setting up lights, screen and a video camera, in order to record part of a 'virtual' church service. It's going out on YouTube on Sunday. 
I hope it all works. In the process we discovered half a dozen ants which had somehow got through the patio doors and were scurrying around behind the sofa. We have ant killer. But it is at Cornerstones!
One Church member kindly stopped off at Wilko on her way home, then left a canister of the stuff in the porch for us.
This morning, two other friends left carrots, onions and a jigsaw. 
Currently nestling either side of the fireplace are two pictures, which I retrieved from the loft about a month ago. You can just make out one of these behind the screen [I have to say, it was quite fun watching Bob reading his sermon from the autocue on screen]
But back to the pictures. When we moved into the house [January 2015] we found them  up in the loft, and I have been intrigued by them ever since. I got them down on the day of the Pancake Party - less than four weeks ago, but it feels like a lifetime away now. I wondered if any church member had the remotest idea of where they came from. Nobody did. So I am sharing them here on the blog.

They are both around 20" x 24" painted on old bits of wood from cheap packing cases.
One says "Hornsey School of Art 1955"
I call this woman Princess Margaret
and the other one Her Friend
Were they done by students?
Were they painted in a "Life class" - or did the artist [s] copy these from existing pictures or photographs.
Are they real people, or artist's impressions?
There are no names or other identification marks.

I don't suppose I shall ever find out their origins. Unlike Dorian Gray's picture in the attic, the faces have not aged with time. There is the remotest possibility that somebody reading this post might recognise them. Any suggestions?