I have Williams birth certificate and waiting on his parents marriage certificate. I just wanted to see if I could get more information on his siblings more than I haveCan I ask what your reason for buying it is? Is it to find out some information or do you just want it (nothing wrong with that in itself)?
For me the only 2 certificates I would consider would be William's birth certificate and his parent's marriage, and only if they didn't help with further research would I move on to others. And even then I might consider William's too uncertain.