My Bohemian History Zitkala-Ša (Red Bird), given the name Gertrude Simmons Bonnin by boarding-school missionaries, was a Sioux crusader who wrote several books, and also was a musician who composed who the first opera by a Native American. She campaigned for the reform of the Indian policies in the Unites States. See her story at link. This photo of her is by Gertrude Käsebier. (Source: Pinterest)
Sarah Winnemucca was born in 1842 the daughter of Chief Winnemucca, leader of the Paiutes, a tribe native to Nevada and California. As a child, Sarah lost many family members in the Paiute War of 1860, doing much to mold her into the peacemaker she became. She is often remembered as a champion of the rights of indigenous peoples. Sarah spent her life working toward obtaining the return of tribal lands to their native people.