Hi,
On Ancestry there is a John Wetherill age 2 Living with his grandparents Myton on Swale, George b1794 Ripon, and Hannah b1797. There is also a grand daughter Emma age 12 living with them.
It's a bad scan of the census and I can't read where Hannah was born but all the children were born in Myton on Swale.
Perhaps one of George's daughters, Jane age 25 and Martha age 20, was the mother of John. A look at Parish Records may solve your problem if this is the John you are looking for.
Ian
