Hi Sue,
I'm going to have a root around the next time I'm at the Suffolk Record Office to see whether I can find anything for John and Sarah around 1754... but it might be a case of having to wait until there are more Suffolk PR's searchable online.
Yes, I'd found James SKEET in 1851, and having found the Elizabeth SKEET connection I looked for his baptism. I've got 7th June 1776 at Framsden to Elizabeth SKEET, baseborn. There's also a baptism 9th March 1780 for Elizabeth daughter of Elizabeth SKEET. So I've assumed that Elizabeth had two children before she married William COLTHORPE.
There's also a double baptism on 18th November 1770 for Elizabeth and Hannah daughters of Eliz SKEET (wid). No ages are given so I'm not sure whether these are also children of 'our' Elizabeth, another person, or even possibly that this is the baptism for Elizabeth herself when she was aged about 24.
I found James in 1861 today, but there seems to be only one person with that name in 1841 in the whole country. As a 'Navy Greenwich Pensioner' in 1851 I wonder if he was serving overseas at the time of the census? I'd not found him in 1871 so was working on the 1863 death - its good to have your confirmation of this.
I see that William and Sarah HAMMOND had Robert, Martha and James with them in 1841 - are these their children, and do you know if they have any more?
The COLTHORPEs are a difficult bunch, it doesn't seem to be a common surname, but there are so many spelling variations of the name it takes a lot of patience to find them sometimes. When I started looking, the BMD records were still in book format at the Family Records Centre, so checking all the name variants was quite a task.
Best wishes,
Nick