I don't expect them to be together, as they would be in their 60s by then, having been born 1779 & 1781 resp. Their mother Mary was deceased by then, and I should imagine their father Thomas would be too.
I haven't asked for 1851 and onwards, as I have to find them in 1841 if they are still alive.
The 1851 Census
about George Evans Name: George Evans
Age: 68
Estimated Birth Year: abt 1783
Relation: Head
Gender: M (Male)
Where born: Eldersfield, Worcestershire, England
Civil parish: Cheltenham
Ecclesiastical parish: St Peter
County/Island: Gloucestershire
Country: England