Hello annes,
I've had a chance to review the census and I think I might be on the wrong track. John did have a brother James, b 1820 who in 1841 was living with his mother & father, whereas John, b 1815, in 1841 is living with his wife, so there must be a James & a John. John's wife Mary says she was born in Stanton, as does John.
Any ideas?
Melfordgal.