"Bloody Pocket" in which "The Mission Fight", Pine Ridge Reservation, South Dakota, December 30, 1890, Box: 1, Folder: 46. Lakota, Dakota, and Nakota photograph collection, RH PH 10. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/429687 Accessed December 02, 2024.