There is a Zoll/Diemer connection for my family, too. Salina Zoll married Joseph John Diemer, Sr. They were my great-grandparents.
I received family info from Jane Stull. She has researched this, and her discoveries show three Zoll/Diemer connections in the same family. In addition to my great-grandparents, there was Peter Diemer, a brother to Joseph John Sr., married to Salina's sister, Isabell Zoll. Finally, there was a marriage between Josiah Zoll, father of Salina and Isabell, to Elizabeth, the oldest sister of these Diemer brothers. I hope these are the connections you are looking for.