Hi Brian, you may have already found the post that I did regarding Daniel Maggs.
I have now found this string of posts and have worked out that I am your wife's second cousin. I come from Florence May Green, born 1902, Charles Green's previous child to Gladys Maude Green.
Tanja's suggestion of Betsy Shears looks spot on to me. I have just done a search on the 1851 census and found other Shears in living in Winterslow.
Brian G