Hi Marc
Thanks for your reply
Sincerely I have no idea where they were from. But I will keep this region in my notes. A lot took to to Alsace (Mueller's)

These are not uncommon names so...it is not easy task. A brick wall I would say...

I did DNA testing and I have a few matches with Scandinavians and my admixture is mostly Finnish and Eastern European from my paternal side - which is a bit exotic here in Quebec, Canada. (I also have some with German or Czeck and Polish ascendance - it could be from the Italian grandmother - but not sure)

The Muller connection was probably one or two generations before.

Are you aware if they mainly kept the Eisen patronym in US ?

I had a look at your family trees. Very interseting (we could be cousins - I have Olson also...)

Your Helena Wuster from France is interesting. Let me check some things. I've seen you posted a request - I will reply there.

Maj