Hi
I have looked on Glyn taff cemetery I see your parents burial ( I have no access to creamations), whats interesting no burials for the 3 mentioned by ambers, I think you need to contact Glyn Taff cemetery to ask about the three mention first to see if they where creamated, there is a possibility that the other you talk of where also creamated, you know the year and their parents do you know where they where living that info would be there also. I looked at Freebmd and looked at deaths for Pontypridd, athought was your parent both from pontypridd you often see family go home to parents or inlaws two have the babies but there are a few poss, or could she have been visiting family and the children died there.
There is also a possibility that if they where buried or creamated they are buried with your parents that would need checking out. My great grand mother was buried with tw0 of her children babies, but I only discovered that by speaking to the cemetery who told me I was amazed.
Try this route and let us know what you find out.
cheers cardiff
