My brothers and sister were sung this song by mother in the 40s and 50s.
She's 89 now. Our family is Dutch, but our ancestors emigrated here from Germany. We know it as Johnny Verbeck. Friends in Milwaukee know the song too, but with a German name, I think Dunderbeck.

One Google search yielded a Verbeck Machine Company in California.
Maybe it isn't just fiction?


Greybeard - West Michigan.