Peter, I have a picture (perhaps wedding photo) of a couple that my father has written the name Gruber on the back. We do have family from Salzburg, but I do not know who these people are. The photo was taken in ZELLam/SEE, Leopold Haidinger, Photograph Atelier. It is a very hard post card like photo, in superb shape. My great grandfather, Huber was from Insbruck, great grandmother Wallner from Zell am See. I did e mail Debbie about the Gruber name several months ago, got no response. Let me know if you would like to see this photo.