Zitkala-Sa (1876-1938), also known as Gertrude Bonnin, was a Sioux writer, teacher, musician, and activist who founded the National Council of American Indians in 1926. She is the author of American Indian Stories and Dreams and Thunder: Stories, Poems, and "The Sun Dance Opera," both available in Bison Books editions. Agnes M. Picotte is a teacher at the Red Cloud Indian School and has contributed to many volumes, including Ella Deloria's Waterlily, available in a Bison Books edition. Angel De Cora (1871-1919) was a Winnebago painter and illustrator. An activist for Native American rights, she also established and taught in the first "Native Indian" art department at Carlisle Indian School.