Although I can't help you directly, I know a man who can. If you're a member of Facebook, look up a group called Port Talbot Old and New. One of the members of that group is a chap called Allen Blethyn. He is a local historian, and he specialises in Taibach and Margam. The Glamorgan Family History society also have a Facebook group, with many members willing to help out.
If your not a member of FB, and don't want to join, I can get a message to Allen if you like.
Hope this helps