James Bama has derived a great deal of joy from the friendships he has developed with many of the Native American subjects of his portraits. Years ago, he discovered that on a personal level, they are often very different from the confrontational image they often project. For example, Wes Studi, a full-blooded Cherokee, established an impressive screen-acting career with his intense portrayals of a Pawnee war-party leader in Dances with Wolves and as the vengeful Magua in The Last of the Mohicans, yet Bama found him genial and obliging. During . . .