Andrea,
Your Johann Eberhard’s wife died in 1788 leaving a 5 month old, who died the next summer at age 1.
There is no death entry noted for him in Tschanad.
Very likely he remarried with small children.
Since no death entry in Tschanad. He may have remarried and moved elsewhere.
Cathy
Kalbrunner entry for him is page 115/line 12. States he is from Deutsch Lothringen.