Collected by Rodolphe Petter, a General Conference Mennonite missionary to the Cheyenne in Oklahoma (1891-1916). The drawings were done on the Cheyenne Reservation in Indian Territory during the 1890s. They are part of the Rodolphe Petter Papers at the Mennonite Library and Archives, Bethel College Library, North Newton, Kansas (MLA MS 31, folder 119 Old Indian Drawings).