I was actually meaning the birth certificate that you mentioned, you thought that William might have married twice as there seemed to be a different mother on Richard's birth certificate. Do contact me direct on the email I sent, much easier to communicate.
I shall have to try and find out if John and James were brothers as that woud provide a nice link between the two families. They were both around the same area, so there has to be some sort of relationship.
Look forward to hearing from you,