Hi Franz, Thank you for your email. I hope that you can understand English, I am not good with German. My sister had replied to you when I sent your message. We are also trying to track down Hansi or Johann Hammerling, son of my uncle, Hans Hammerling, wife Gretal (spelling?) and his name is either Johann or Hans Hammerling. He worked in the Vienna Police Department as a detective. Do you have an email/home address on him? Would love to connect with the family again.