I am looking for information about the ancestors of Augusta Blaschke, born 30 Jan 1938 in Leba, Pomerania, Prussia (now Poland). She married Herman Alle Carl Dau of Bublitz, Pomerania (b. 15 Apr 1938). They had six children in Lauenburg before emigrating out of the port of Bremen, Germany in 1881. They settled in Detroit, MI.
I have very little experience researching German lineage overseas, so any help would be most appreciated.