Thank you for taking the trouble to look, Angela. The Grandy family I am interested in go back to a James Grandy c1599-1689, who lived in Poole. His son and grandson were both named William, and lived in Longburton.
I have the will of the younger William, whose sons died without issue. (I am descended from one of his daughters). I would have expected there to be wills of James and William senior, but I don't know where they might be.
There are later Grandys in Dorset, in Sixpenny Handley, but not my direct line. I don't think Gundry would be the same name, but you never know.