Hi Chris, I wondered whether he had got married abroad, either in South Africa or India. If that was the case though, do you think he would be in touch with his spouse when he returned to England and then to be informed when she died approximately 20 years later? I do think it's a strong possibility they waited until the first wife died and got married soon after but if that was the case and if the first wife lived abroad, Herbert would have had to be in contact with her over a long period of time. I suppose nothing's impossible!