Collection contains Curtis' notes, correspondence, short stories, histories, transcriptions, translations, and original music manuscripts documenting the following American Indian tribes: Yuma, Navajo, Zuni, Winnebago, Apache, Kiowa, Pawnee, Cheyenne, Arapaho, Dakota, Mojave, Kwakintl, Pima, San Juan Pueblo, Wabonaki, Penobscot. Included are notes and typescripts related to her book: Songs of Ancient America (1905).