You spotted that. Wish I had!
No she can't be damn.
The death certificate won't help I'm afraid.It doesn't have mothers maiden name on in England and Wales although I believe it does in Scotland.
Not sure what to suggest.
There might be a Will at Lichfield archives but the on-line index only goes up to 1760.
There is a Thomas Phillips of Uttoxeter owning land on the 1798 land tax.It looks like Cords Moor and the tax is £4 10 10d.
So there is a chance he would own enough for a Will.
I did find an entry
www.chapelbooks.co.uk/stafford.htmFor a Thomas Phillips owning land at Checkley in 1752.
There is also a burial for John Vernon at Uttoxeter 3.1.1811 widower so if he was Ann's father it might mention a Thomas Phillips grandson.There is a copy at the National Archives at Kew which describes him as a cork cutter but it will cost you £3.30 to download.
Can't spot John Goostray.
Ciderdrinker