Finding John Pemberton blacksmith's family

Examined the will of John Pemberton blacksmith 1664: wife Margery, children John, Robert, William, and Elline. Sorted the baptismal records of the parishes (both the Cheshire Parish Register Transcription Project and the familySearch christenings data I extracted a few months ago) and tried to identify this family - could not find them. Specifically, I could not find a John with even two of the four children named. This is an interesting "not find" because it seems to say something about the completeness of the records. I think I shall try to do this same thing with the George Pemberton wills and see what happens.