Zitkála-Šá (1876–1938), also known by the missionary-given name Gertrude Simmons Bonnin, was a Sioux (Yankton Dakota) writer, editor, musician, teacher and political activist. She wrote several works chronicling her youthful struggles with identity and pulls between the majority culture and her Native American heritage. Her later books in English were among the first works to bring traditional Native American stories to a widespread white readership. She wrote the libretto and songs for The Sun Dance Opera, (1913), the first American Indian opera.