Really good article. Got my copy today. Beautifully produced periodical.
Here's a photo that was taken around the same time as the Bratley photo pf the Wajaje men in the article and features some of the same faces:
Left to right: Pulls the Arrow Out, Sleeping Bear and Turning Eagle, 1897. South Dakota. Photo by Jesse H. Bratley. No entirely sure that the man identified as One Wood in the article isn't the man identified as Sleeping Bear above.
There's a good collection of Bratley photos here (though you'll have to put up with the 19th century labelling):