Verlag fuer Amerikanistik (The only German publishing house specialized on American and Native American history and culture).

Historical Society of Western Pennsylvania, Pittsburgh

Buffalo Bill Historical Center, Cody (Wyoming)

Northfield Historical Society, Northfield (Minnesota)

The special website for the “Defeat of Jesse James Days” in Northfield

R. L. Wilson, worldwide most famous expert and author of books on antique American guns like “Colt – An American Legend”.

Historic Fort Snelling, administered of the Minnesota Historical Society, offers one of the best living history interpretations in the United States. The 1819 established Fort Snelling tells the story of the development of the U.S. Northwest.

Fort Union Trading Post, North Dakota. Once a trade hub on the Upper Missouri for the Northern Plains tribes and the American Fur Company, today a masterly reconstructed living history site.