George Catlin was an artist in the 19th century who was committed to documenting the traditions and culture of Native American tribes through his paintings. The document discusses four of Catlin's paintings - "Sioux Mother and Baby", "The Buffalo Chase 'Singing Out'", "Sioux Village", and "Mandan Indian Ha-Na-Tah-Muah, Wolf Chief" - and how they provide insights into Native American life and customs. Catlin sought to educate the American public about Native Americans and preserve their heritage through his artwork.