The Richard Erdoes Papers consist of correspondence, writings, audio and moving image recordings, photographs, subject files, and other materials related to Erdoes’s work with and about American Indian peoples, particularly the Rosebud Lakota. The papers span the years 1920 through 2008, with the bulk of the material dating from the 1960s through 1999. Though materials have been arranged primarily by format and function, subjects and topics represented in the collection transcend this organizational system. For instance, individuals who Erdoes recorded and filmed are frequently documented by images in the collection, and in Erdoes’s correspondence or subject files.