I think I might be able to help you out on this one. I am not descended from the Esch family of Westphalia Michigan, but several of the family members married my relatives, and I have a large numbers of Esches in my database.
The more specific problem is that I have two Joseph Esches in my records, but no information on their spouses and children. Do you know the birthdate of your Joseph Esch? Perhaps this way, you'll get the information you're seeking.