Thanks, if you find out anything about their prior movements such as marriage etc that would be great.
I found out some info about Jane's (or at least John's) parents.
Thomas Toy died in 1831, birth year estimated at 1780 (parish records), and is buried in St. Peter's, Wolverhampton.
Jane Toy died in 1847, birth year estimated at 1781 (according to 1841 census)
Jane Toy Jr. died in 1847 as well.
The marriage of Thomas Toy and Jane Evers in St. Peters in 1804 is a possibility for the couple, but I can't find any children between 1804 and 1815 (John's birth) which would make it more likely.
Jane Toy Jr may have been born in 1816, to tally with her 1841 census entry. Cryptic then, why she doesn't appear with brothers John (born 1815), Thomas (born 1819) and William (born 1822) in parish records. However, John 'is' her brother, that is certain, as he raised her infant son after she died and is listed as 'uncle' on census.
Can't find a death for James Sweet anywhere?