Thanks to some one in Wisconsin I have found out that the the family of Peter Etringer and Helena Mueller arrived in the US in 1866 May 11 and possible went to New Orleans in 1866 Nov on the ship Louisana. Source is Germans to America. Oral family history says they lived in around Metz France where Peter Etringer served in the army as a horse keeper. Tramatized by the war he could not butcher animals and his wife Helene Mueller had to do that for the family.