While Dr. Debo was dedicated to scholarship, the injustices she uncovered in her research also led her to activism on a broad scale. She is recognized in Oklahoma for being on the first board of the state's chapter of the American Civil Liberty's Union (ACLU), and she was active with the statewide affiliate from its founding. (In fact, the Oklahoma group would later bestow an annual award named in her honor.) A number of the interviews within the Oklahoma Oral History Research Program's (OOHRP) series, "Remembering Angie Debo," touch on her work with the ACLU, and those are one resource shared in this section. Dr. Debo was also a strong supporter of Native rights, and much of her activism was in this vein. In her later years, she became particularly engaged with the land claims battle of Alaska Natives and the water rights concerns of the Tohono O'odham Nation (also referred to in the past as the Pima). Her work on behalf of the Alaska Native Claims Settlement Act (ANCSA) is reflected in the correspondence that Dr. Kurt Anderson has compiled from her collection and made available here as a resource.