- Reply by Shorze, Jun 5.
- Reply by EMark, Jun 5.
Welcome to the Forum, Shorz. I'm afraid I can't help you with your quest, but, with luck, maybe somebody can jump in here with some info.
I would, however, suggest that you visit some WI and MN wineries and strike up conversations with the people who work there. I would think that even the histories of individual wineries would give you some insights and leads for additional research.