Who took a photo of your ancestors?

Hello,

Some weeks ago an old lady sent me some old photos;
she was sure her nephews would destroy them if she would be dead one day.
So I started to write down the history of the persons shown.

I discovered the names of photo studio owners in East and Westprussia of 1905...1910

and my idea was born: collecting the names of other photo studio owners. 64 names collected since 2005,Febr.22 are online: www.konitzer-info.de/fotostudios.htm
but I presume there are 200 or 300. You will help me. I am sure.

Thank you!
Martin Conitzer