Now that's a b*gg*r... I smell red herrings....
Joseph's widow was Elizabeth, so that fits, but..
Benjamin is Joseph King (the miller)'s nephew, not his son:
benjKing.jpg
What do you think Benjamin's occ is?? Does it say 'builder'?
And then, when he says that Benjamin gets it all if Joseph's direct descendants die, it looks as if Benjamin is a miller??
benjKing1.jpg