I am very interested in the gravestone photo that you have of Henry Jones. Does it have any dates on it? I'm not sure I agree that Henry is a brother of Hannah. It's hard to tell from the information that you provided. I have three Henry Jones in my family line. One of these may be him. In fact one Henry Jones descended from George Jones and Lydia Hobson. Her sister Sarah married a William Stubbs.
Our family lines are closely linked. I would be happy to share information with you.