I may (or may not haha) be able to assist you with this, or we might be able to work this out between us.
I was born Everett. I have taken the Ancestry DNA test and my DNA is uploaded to most sites.
My most distant
DNA confirmed Everett Ancestor is:
Francis William Everett (born 1865 Herefordshire - died 1926 Herefordshire)
Parents are Henry Everett and Elizabeth
(I've been attaching my DNA to various Henry and Elizabeth Everetts around the right age and have yet to confirm which Henry and Elizabeth).
I have a DNA match - TB - his most distant
DNA confirmed Everett Ancestor is:
Maria Everett (born 1823 Liverpool - died 1879 Melborne)
Parents are William Everett and Maria
I have a DNA match - IanF - his most distant
DNA confirmed Everett Ancestor is:
Elizabeth Everett (born abt 1807 Dover, Kent - died 1878 Norfolk)
Parents are unknown
We suspect that IanF (Elizabeth Everett 1807) and myself (Francis William Everett 1865) are both descended from:
William Everett (born 1722 Heytesbury, Wiltshire) and Merium Hill (born 1729 Wiltshire).
The problem is, we have no other DNA matches other than each other, and when you get that far back, it's unlikely that you only have 1 other DNA match. Having said that, this is an area where everyone has got stuck on in their trees.... because it seems to many of the children moved to other parts of the country or emigrated to the US, Canada or Australia.
If we can establish that Maria Everett (1823) is also descended from William Everett (born 1722 Heytesbury, Wiltshire) then we have confirmation both in documentation and by our DNA that the link is correct.
Janie x