5942482 Pine Ridge Agency, S. D. trooper, Buffalo Soldier Corporal, March 1891 (b/w photo) by Morledge, Clarence Grant (1865-1948); Denver Public Library, Western History Collection; (add.info.: A Black Corporal, (Buffalo Soldier) in the Ninth Cavalry, poses on his horse on the Native American (Lakota Sioux) Pine Ridge Agency, South Dakota. He wears a military uniform and has a gun in a holster on his belt. Snows covers the ground and frame agency buildings show in background.); by Denver Public Library .