QUESTION: Who is this Indian?

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click photo

Who is this Native American Man wearing the 1871 Grant Peace Medal?  

There are actualy three photos with three different Indians who are wearing the same headdress and are identified as Lakota.All of the photos that were apparently taken in the same studio

One of the photos can be positivley identified as “Red Cloud”.

These three photos were donated to the Denver Public Library by Louise Stegner. Does anyone know who she was or her connection to the photographer or Indians?

SIDE NOTE:
Louisa Stegner taught in the Omaha Public Schools for 29 years and then operated a bookstore in Omaha, Nebraska. She collected and sold Americana and did some writing of her own. The Denver Public Library became the receipient of many of her photographs, including a large number of the original glass plate negatives of the Wounded Knee photographs.