Joe,

I'm afraid that I can't help re: the museum you are looking for.  But I'm not
surprised to hear that one exists.  The Germans have had a long time
fascination with the American West.

And,  if you are researching the Native American/German thing, you
HAVE to read a series of novels by the late 19th century German author
Karl May.  They provide a fascinating, if bizarre, take on the "noble
savage" and the white imperialist.  Interestingly, May, who never left
Germany himself, sent his alter-ego first across the American West and
then to North Africa, Asia Minor and the Balkans.  Oooh, I could go on
forever about this...

Anyway, the books are quite a study, and apparently as recently as the
1980s, there was a "Wild West" show featuring the main characters
from May's book doing the German carnival circuit.

Let me know if you want to talk more about Karl May.

Riva Feshbach
Curator
DePaul University Art Gallery