Hi,
I do not know if you got in touch with Evelyn and she is already helping you.
If not feel free to get back to me by using Ancestry member connect and give me some more details please. In order to be able to help you I would need a letter of authorization as we have strict data protection laws in Germany.
In the course of the past 12 months I could help more than 10 US adoptees and would do my very best to find your birth family also. For general information on adoptions from Germany and how to do the research please look at my numerous posts on this board here.
Gaby