They were using these young men as late as WWI for PR. They'd dress them up in "Tribal" costumes that probably were as alien to their real tribe as a suit and tie. I have been trying to find info on one of them. Seems he was engaged to my GAunt and he did enlist in the military and was killed in the Argonne Forrest. I have photo's of him and some beautiful beaded things that had to be part of the costume.
Pam