George, I accept that, it is the reason why I restrict myself to UK research. I can either travel to the parish in question, of purchase microfiche of the original records from the Records Office.
However, when a person tells me that someone states something in a book, one can only assume the author examined original documentation, and not the work of a previous author.
The problem then is to view the original record, because however well meaning the person that wrote to me might be, the data is 3rd or even 4th hand, so without personal verification it is little more than speculation and hearsay.