Who is Tom's first roommate at the Indian school in the novel, When the Legends Die?

Luther is Tom 's first roommate at the Indian Service school. He is fourteen and wants to grow up to be like Benny Grayback. Tom and Luther get into many fights, and eventually Tom kicks Luther out of the room they share. Later, Luther joins in with other students to tease Tom, calling him a girl because he is very good at weaving baskets.