I would love to share information with you, only I don't have much to share.
I just received a death certificate from 1914 for my great grandmother, Grace (Schuller) Hoffman(n). I never knew her maiden name, and I now see for the first time that her maiden name was Schuller and our family tradition holds she came from the Karlsruhe area. Her father was one G. Schuller, and she first landed in Berlin (now Kitchener) Ontario Canada around 1835. The family was apparently Catholic. She married my Grandfather, August Hoffmann, on the boat coming over, and eventually lived briefly in a mining town in northern Michigan before settling permanently in northern Minnesota, right by the North Dakota border, along the Red River. I have no information on her family, but I am wondering whether she had relations that traveled with her or were already settled near her eventual home. I suspect there may have been a beer/brewing tradition in one or both of the families, as August ran a tavern in Calumet Michigan, before a fire burned out the ramshackle downtown and destroyed his business. They eventually settled on U.S. government free land "borrowed permanently" from the Indians.
I would be interested in any information about the Schullers of Karlsruhe, as I can't help but believe that there may be a relationship.