Yes possibly Senegalese Paul; slight brain fade on my part! I have found a mention of the Sengalese in a book about the liberation of the Eure and Loir area of France (of which Bonneval is part of). Although there are no close up photos of the troops concerned.
In the 3rd photo; the cafe visible behind the group is still there. It's now called the St Roch and belongs to a friend of mine.
Could you please post a picture of the café as it is now? Many of us enjoy seeing a place from history as it is now. It is a small way of honouring the past.