I returned last week from a short trip to the area where many Hund families originate. We stayed in Kappelrodeck and drove around to several small villages in the area. I checked with a family which had a couple of people named Anton Hund in Kappelrodeck but they didn't fit into my family. We then drove thru Ulm, Waldulm to Stadelhofen. We wanted to eat lunch but it was Sunday and family gatherings were held for those making their first communion. The Gasthaus we stopped at was run by a family named Hund. They were too busy to talk but I did get the name of Willi Hund. I plan to contact him soon.
I drove to Karlsruhe to the state archives and (long story short) I found my Anton Hund and his family and they did originate in Stadelhofen. I found his wife's maiden name (Springmann) and his mother and father. They are Andreus Hund and Anna Marie Schneider.
It was a very short trip and I haven't had time to do anything with the data.
The area from Achern to Kappelrodeck to Offenburg contains nearly as many people named Hund as there are fruit trees which were in full bloom and quite beautiful.