I have tried to find Sophia in the census returns for Wales and England both 1841 and 1851. I cannot identify her for sure but she is not to be found in Wrexham under the name of Jones in either. I am aware that the 1841 is missing for parts of Wrexham.
This made me wonder if she remarried. There are possible marriages for her in Wrexham, two in 1839, one in 1840 and another Civil Marriage in 1842. North Wales BMD shows possible spouses as follows:
1839, Wrexham St Giles, Edward Kelly, or Thomas Williams.
1840, Wrexham St Giles, Thomas Hughes, or Maurice Roberts.
1842 Wrexham Civil Marriage: Henry Jackson or Richard Jones.
I have looked for her as the wife of these possibles and the most likely one I found was a Sophia Hughes in Penybryn, Wrexham Abbott, in the 1851.
The reference is: HO107/2503 Folio 593 Page 26.
The household is as follows:
Sophia Hughes Married, aged 51, Bonnet maker, born Wrexham.
Elizabeth Jones, Temp Lodger, married, aged 48, Dress maker, born Wrexham.
Elizabeth Jones, daughter, Unmarried, aged 21, Dress maker, born Wrexham.
Robert Jones, Unmarried, aged 15, Shoemaker, born Conwy. An infirmity is shown but I cannot decipher what it is.
In theory, the relationships should be to the head of the household. That would make the two Jones children Sophia's, rather than Elizabeth. I am not convinced about this however.
I don't know if anyone else can find an entry for someone who could possibly be Sophia.
One way to approach it might be to enquire of the local registry which of the marriages has Sophia as a widow, or to look these up in the parish registers for St Giles.
Jo.