William Osborne 1799 Mulbarton or 1796 Keswick?

[Yorkslass]

Yes - you've got it.  The £200 was forfeit if they didn't marry.

Hmmm, supernatural powers would be really useful 

The 1851 on Ancestry, Thomas is indexed as Thomas Oborn.  They're back in Lakenham, and James is still with them.  I couldn't find any of them in 1861.

Yorkslass

[Duodecem]

I never thought of Oborn as a spelling.
I've found death records on Freereg for Thomas April 1856 and Elizabeth December 1857 , both in Lakenham.
James is on the 1861 as follows:

1861 Census
   
Piece: RG9/1194 Place: Yarmouth Northern -Norfolk Enumeration District: 18
Civil Parish: Great Yarmouth Ecclesiastical Parish: St Nicholas
Folio: 37 Page: 24 Schedule: 200
Address: 15 Row 58

        Surname       First name(s)       Rel       Status       Sex       Age       Occupation       Where Born       Remarks   
        PESTELL       Charles       Head       M       M       26       Boatbuilder        Norfolk - Great Yarmouth           
        PESTELL       Maria       Wife       M       F       23               Norfolk - Great Yarmouth           
        ORSBONE       James       Visitr       U       M       56       Oaster        Norfolk - Ingham

Ingham and Keswick are linked parishes. If you read the origina lyou can see he's back to being a carter not an oaster!
There is a freeBMD death for James Osborne in Norwich in 1865. No age given until 1867 sadly.
I can't find him in 1871 so it may well be him. Jan

[Duodecem]

No sorry -it's Intwood that's near Keswick not Ingham so I'm probably wrong about James. Shame- I thought I was doing so well too but there was probably another single carter of similar age also called James Osborne, how thoughtless is that!