Studio portrait of Reuben Wolf (left) and Robert Matthews (right). People Wolf, Reuben Matthews, Robert Nation Omaha Pawnee Pawnee (Chaui) Time Period 1880-1889 Repository National Anthropological Archives, Smithsonian Institution Location NAA 74169; Photo Lot 81-12 06894000 Format Glass Plate Negative Photographer John N. Choate, Carlisle, PA