This won't help you figure out your Davis family, but back in the time
period you are looking often a father doesn't name all of his children
in his will. So you can't use a will to determine for sure the names of
all his children. If a father gave a son or daughter some land at an
earlier date he might just ignore them at will-time. Then again he may
mention them and state that they already have all they are going to get!