Crystal Bridges Museum of American Art last week announced the acquisition of 31 modern and contemporary artworks by 25 Native American artists from the Bruce Hartman collection in Kansas City, Missouri. The collection of 30 paintings and one sculpture date from the 1920s to 2000 and include artworks representative of San Ildefonso self-taught artists; the Santa Fe Indian School; Oklahoma artists, including the Kiowa Five/Six; modern artists embracing abstraction; and contemporary works. These a