Like you, I always thought that this Spotted Elk was Oglala until I participated in a discussion with Spotted Elk´s (Big Foot) gr-gr-grandson and our member Ephriam. If I remember correctly Spotted Elk´s son, who took his father´s name, after Wounded Knee stayed at Pine Ridge. It is likely that therefore he often was identified in photographs as Oglala.
Wonderful and savage the image of IRON HAWK (Cetan Maza). I always have seen him labelled as Hunkpapa, not Oglala. He was born in Montana in 1862. He fought at LBH and was wounded from a bullet below the ribs. After, he made a discription of the the battle in the sign language. Other info about about him?
Still about IRON HAWK: age 14 when he rode into LBH battle with his bow and arrows and his face painted red; shot and killed a soldier on horseback with an arrow in the Custer fight. Then, joined the attack on Reno's water carriers. Still living on Standing Rock in 1929. He was a Hunkpapa, but I don't know at which band belonged him.
Jeroen: your last image is correct. He is IRON HAWK - Hunkpapa. I've seen the same image, so labelled, in this book: "Lakota and Cheyenne. Indian views of the great Sioux war 1876-77". He was a great warrior! Can anyone to add some info about IRON HAWK - Oglala? Please, who was this man?