Hello Heidi, happy Birthday first,
so I´m from Germany and I looked into the German
telephone book for Bergen and Michalke and both families are still living in Hameln, or relations, the easiest way is to call them ,look under www.telefonbuch.de
give place Hameln under "Ort"
name Bergen or Michalke under "Name" and you will find
three families each of them!!!
do you know it was a big problem or desaster in your family
your adoption, normally with other people searching they ancestors on the message board, I helped them with a direct call in German, but in your case it could be difficult, or?
drop a in what you want ,perhaps you have a German Friend or relation who could make the phone call!
search help I think is www.interadopt.de
Stefan Mahnken from Grasberg , Germany
you will find in Hameln(perhaps Aunts,Uncles or cousins):
Helmut Bergen, Wilhelm Bergen and Wolfgang Bergen
Thomas Michalke, Monika Michalke and Renate Michalke!