Although Dr. Debo stayed in Marshall, Oklahoma, for most of her life, her legacy had a much farther reach. She was a prolific author and an academic activist whose work informed not just historians and researchers but impacted everything from a recent Supreme Court case (McGirt v. Oklahoma, 2020) to the career of author Larry McMurtry and the land rights of Alaska Natives. Her influence can be traced in detail in her collection of papers, housed in the Oklahoma State University Library Archives, but also in the words of friends and colleagues as they recall her life and career in a series of oral histories. The scholarly legacy she left behind in her written works (and those works written about her), is also a clear indication of the mark she made during a long and active life.