Thanks very much Claire.
I think you must be right about the possible previous marriage, looks like that one is a red herring, why would he sign one and not the other, well detected and thanks for that one.
I had the burial in Sheffield in 1827 too, the information about his death months after Reuben's birth comes from an obbituary to Reuben in a Sheffield newspaper on 14th November 1908, perhaps the newspaper got it wrong?
Another piece of information that I forgot to mention is that Samuel was possibly a Sergeant-Armourer in the Derby Militia, How would I go about investigating Samuel through that connection?
Thanks again Claire, much appreciated.
Dave