Troop "B" Oglala Indian Scouts, Lieutenant Pershing, Commander, Pine Ridge Agency, South Dakota, 1891, Box: 1, Folder: 56. 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/429697 Accessed December 02, 2024.