There is a Tree on Anc with this info;
Edmund Dyer WINSTONE, born c 1798, Somerset
Parents:
JOHN Winstone 1748-1833
Jane DYER 1760-1831
Wife;
Harriett HITCHMAN
Child;
William Henry WINSTONE 1822-1865
They seem to be descended from his Brother going by info posted;
JAMES Winstone born 1795, Tyntes Farm, Wraxall, Somerset
I can contact them for you if you want.
Trish

Children they have for John/Jane are;
JOHN, 1783-1849
SARAH, 1785
MARIA, 1787-1787
WILLIAM, 1789
JAMES, 1795
EDMUND DYER, 1798
GEORGE, 1799-1847
HARRIETT, 1802
I am not sure how accurate this is or the source for their records.