Lieutenant Pershing (far right) with his Native American (Lakota Sioux) scout troops in 1891.
CREDIT: "Troop 'B' Ogallala Indian Scouts, at P.R. Agency S.D. Lieu. JJ. Pershing, Com'd'r./CGM." June 30, 1891. History of the American West, 1860-1920: Photographs from the Collection of the Denver Public Library, Library of Congress.