Hello Anna, this is his wife by the way. I think the main concern is getting wrong information into a book. They take it off the net but it's not really documented then we've got books out there that have dates that are wrong, different and we don't know what is what. Some have more children or less children. Who may or may not have been married more than once. There was this one book people ordered that was not documented well at all. Thanks for writing. As for me I welcome information. Like you say we may find out some vital clue to the tree!! I ask Emma to see what things she has, she's pretty good with this kind of thing. God Bless.