And 12 years later...lol.
I don't know if either of you will read this, but I (really mostly others) have traced the Willier line from 1722 in Switzerland, to the family's settling in Ohio, then Joseph Amie moving to Iowa. Joseph Amie had 9 children (the oldest David Amie) was born in Preles Switzerland, and half his other kids were born near Berlin, Ohio, then the last 4 in Iowa. If you are able to check out my Tree (the Willier tree I have), it shows the lineage showing all this.
Oh, and some cousins (last name of Giauques) went back and forth with them.
Hopefully that helps!