Hi, I've just started on the ancestry journey and finding out things I'm not sure I want to! Du Mayne Swinfield Thomas was my paternal grandfather and married to my grandmother Louise Harriet Pendry. I think he also had other wives, a search on ancestry reveals other spouses. I don't have a lot of information at the moment and many of my family members who might have known have all passed on. I'll make some more enquiries and if I find anything, will post another message.