I only raise this point out of interest. If during the war the button factory was critical to the war effort it may have been funded by the government but this would end when it was over. I know that there were "reserved occupation" employees my father being one of them.
I recall Harry Byatt post war. He seemed quite a wealthy man and lived in a large house in Mersterham (which was the countryside then) so whoever owned it he ended up all right. I do have a photograph of Harry Byatt taken in 1940.
Are the two photos of the factory; at the coronation and during the fire, the only ones known to exist?