Hi, I'd be grateful for any help

I've had a chance to look at the parish records for Southleigh and Stanton Harcourt, areas where there has been alot of activity for my Warner farmers!
Southleigh gave me some interesting burials but no births, so I'm assuming the families were born else where?
Even if some areas can be ticked off the list, that would be a great help!
I'm listing the following areas due to wills etc that have mentioned them and because they are close to Southleigh, Stanton Harcourt!
Robert Warner was born abt 1766 and was buried in Southleigh in 1830.
His son William was born abt 1799 and was buried in Southleigh in 1850.
The areas I now favour for births are- Aston (coate?), Bampton, Witney, Cogges or Eynsham.
I know this is probably too great a task but any help or advice would be appreciated.
Thanks.