RICHARD ERDOES (1912-2008) was an artist, photographer, Native American rights activist, and author or editor of more than twenty books, including Lakota Woman and Lame Deer, Seeker of Visions.

ALFONSO ORTIZ (1939-1997) was a Native American scholar, anthropologist, activist and author. His works include The Tewa World: Space, Time, Being and Becoming in a Pueblo Society and The Pueblo.