When I Google'd John Zold and Louis Zold, I got this message, old as it is. Perhaps you have no interest in the Zold's any more, but I have this photographic postcard of John and Louis and Mr. Ratz, taken in Alberta Canada about 1917. It is sent to Rose Frizzell 1404 5th Ave, Corning, CA and I wonder if any of these are the same people about which you write. I would love to make contact with the family to see if they are inetested in having this item. I would be glad to attach a scan to an email, if you are interested.