She established the Wasagiya Najin Grandmothers' Group on the Cheyenne River to help build kinship networks while also developing Simply Smiles Children Village.
Thunder Hawk has spoken around the world as a delegate to the United Nations and is currently the Lakota People's Law Project principal and Tribal liaison.
She was a member of the Pie Patrol, a group of women active in AIM, consisting of Thelma Rios, Theda Nelson Clarke,[14] and Lorelei DeCora Means.
[10] Mary Crow Dog (née Moore), wife of civil rights activist Leonard Crow Dog, who was also present during the siege at Wounded Knee, referred to the Pie Patrol as "loud-mouth city women, media conscious and hugging the limelight," who loved the camera and took credit for what the women of AIM were doing behind the scenes.
[15] Anna Mae, a Mi'kmaq woman from Nova Scotia, was having an affair with Dennis Banks, founder of the American Indian Movement while he was still involved in a common-law marriage with Darlene “Kamook” Nichols.
[18] Along with Lorelei De Cora, she founded and established the 'We Will Remember Survival School,' meant to provide a safe place for American Indian youth whose parents were facing federal charges or who had dropped out of the secondary education system.
The group worked to address sterilization abuse, political prisoners, children and family rights, and threats to indigenous land bases.
[20] Thunder Hawk created Wasagiya Najin or, "Grandmothers' Group" to assist in preventing the unlawful extraction of children from tribal nations.
[24] Thunder Hawk has also been mentioned in numerous publications, including Blood on the Border: A Memoir of the Contra War, authored by Roxanne Dunbar-Ortiz, ETHNOGRAPHIES OF CONSERVATION: Environmentalism and the Distribution of Privilege, edited by David G. Anderson and Eeva Berglund, We Worry about Survival: American Indian Women, Sovereignty, and the Right to Bear and Raise Children in the 1970s, authored by Meg Devlin O'Sullivan, Timelines of American Women's History, authored by Sue Heinemann and American Nations: Encounters in Indian Country, 1850 to the Present, edited by Frederick Hoxie, Peter Mancall and James Merrell.