By a process of deduction, I'd guess that John who married Elizabeth (father of Sarah Lichfield Jays/Jeays) is NOT myJohn --
because his daughter Sarah was alive in 1868
and my John had a daughter Sarah Ann in 1846 - I doubt he would have given 2 daughters who were both alive at the same time, the same name (though it's not impossible!)
Mary Ann King Jays can be spotted as Packwood in 1851/61 though the enumerator in 1851 should have be sacked, it's a horrendously messy page and difficult to read! I can't see any more clues on the page - sadly she doesn't have an elderly father living with her, or anything useful like that