Swiss-born watercolor artist and illustrator known for his Native American-themed artwork. His best-known paintings include Hunting the Buffalo, War dance of the Sauks and Foxes, and Inside of a Skin Tent.
He founded a St. Louis-based art studio in the late 1920s. Early in his career, he created magazine and book illustrations.
His paintings and drawings frequently depicted the Sioux, Cree, and Anishinaabe people of Canada and America.
He lived in Switzerland until the age of fifteen, at which point he emigrated with his family to Canada. He later lived in Wisconsin and Missouri.
He and Arizona-born artist R.C. Gorman both became known for their Native American-themed paintings.