I managed to spend a few hours in the Record Office on Monday and can now contribute some more to the discussion.
My first thought is - since both John Uptons seem to have been born around 1793, the one who married Ann Fradsham in 1823 would have been 30 then - late for a first marriage. His first wife is unlikely to have been Rebecca Lester, with such a long gap since her death in 1816. John and Rebecca, then John and Mary Dexter is much more likely. It seems likely, then, that Ann Fradsham was the other John's second wife, although I haven't explored the possibility of a first one.
Since only one of these Johns seems to have been baptised in Desford, I looked at neighbouring parishes, results as follows:
Thornton - DE 1269/5 1779-1795 - 1793 Mary Dexter bap daughter of George and Elizabeth. No Uptons
Markfield - DE 1729/2 1785-1812 - 1795 Mary Dexter bap daughter of Joseph and Alice, 27 June. No Uptons
Ratby - DE 994/1 1778-1805 (stopped at 1795 for lack of time) No Uptons
Kirby Muxloe - DE 123/6 - 1784-1794 No Uptons
Kirby Muxloe - DE 123/7 - 1794-1812 No Uptons 1794-8
Newbold Verdon - DE 750/3(1&2) 1754-1804 No Uptons 1790-1804
Kirby Mallory - DE 515/3 - 1754-1812 No Uptons
Kirby Mallory - DE 515/4 - 1783-1794 No Uptons
Woodhouse marriages 1754-1797 (started at 1780)
1792 - Henry Upton m Sarah Wire 9 April
- John Upton m Mary Wire 13 Aug
- Benjamin Upton m Ann Wootten 3 Sept
Any of these could have been the parents of the John born 1793 who was not born in Desford.
Woodhouse Bishops' Transcripts - MF 457 (looked at 1764-1803 before time ran out)
Plenty of Uptons, but no Johns baptised around 1793
I looked in the Wills index, but couldn't find one that would help.
Not sure where this gets us, except back to Woodhouse, where the centenarian John may have been born. But no other baptisms around 1793 for a John.
Anyone any more ideas?
Judi