Ann, thanks for your answer. Do you know who Isaac's father was? He must have been the son of Martin, Ferdinand, or Peter since they went to Stark Co., OH and their brother Andrew apparently remained in PA. I have written for their father's (Frederick) will.
My husband is descended from Martin, and I am writing a book about Paul's mother's family. It would be good to have as much info as possible about the collateral lines. If you would be willing to share your genealogy, it would be greatly appreciated. Thanks for your consideration.