My father,Alfonso, has the complete family tree of the Spanish branch. He is trying to find the origin of the one that settled down in Bilbao(Spain)two centuries ago. That was John Amann, born around 1.790 in Bordeaux (France), son of William Amann and Mss. Audebert. William was born in Lübeck (Germany) around 1.760, his mother surname was Fusternau, we do not know is father´s name but was born in Osnabrück (Germany). Here we loose the clue. For further details please contact me in english, spanish or french.