Elisabeth Bauer of Breslau Germany

My name is Jens Wiechmann from Cologne, Germany and I am searching for the family of Elisabeth Bauer from Breslau. I am not related to her though, but in the Nineties I made a visit to Voronesh, Russia and a friend gave me a stack of old postcards as a present. I was a child then and there was no way to trace the origins of the postcards. I forgot about them and just recently found them again while reorganizing some stuff.

The postcards are pretty hardto decrypt as a very old fashioned German font is used but most are addressed to Elisabeth Bauer in Breslau. They have been sent from different places in Germany as a kind of vacation greetings in the time before world war one and it seems to be that they have been written by a close friend or husband?!

Does anyone know something about this family branch? I would like to give the postcards back to the family to which they belong.