This looks like the one who died in Canada. So I wonder if they have just gone by the names?
Very likely I should think, Groom.
But then I made assumptions on the 1895 death ref, assuming that the 1820 dob was simply a result of lack of knowledge.
I have subsequently discovered that one of Samuel Francis's children, Eliza Banks Mitchell Trinnaman, moved with her husband George Trinnaman to Utah in the 1860's, and subsequently died there. So I think some of her descendants have associated records from a Samuel Mitchell in the US to the family.
I don't believe Samuel Francis went to the US though. It seems likely that both he and his wife Elizabeth Banks Mitchell died at some point in the 1860's, after Samuel Francis had witnessed his daughter's marriage in 1861.
I have ordered the marriage certificate for Samuel Francis Mitchell and Elizabeth Banks Hopgood, and hope this will help.....otherwise I have no means of confirming his father, or of linking him with my greatx4 grandmother Sarah Mitchell, to see what their relationship actually was.
I have, however, been able to confirm some link between the two families, Philip Miller/Sarah Mitchell Miller, and Samuel Francis Mitchell/Elizabeth Banks Mitchell by noticing that Elizabeth Banks Mitchell was a witness to the marriage of Philip/Sarah Mitchell Miller's son Philip jnr in 1838 in Greenwich.
And I am also following up a really tempting possibility - I noted that the entry for Sarah Mitchell and Philip Miller snr's marriage in 1818 at St Leonard's Shoreditch is followed by an entry on the same day for a Robert Mitchell.......could he be a brother, because there is a birth ref for him at the same church as son of John and Martha Mitchell.
Very fascinating byways.
Many thanks indeed to all for your interest and help