If you´re interested in Southern Plains Indian culture and history, I think this article by Daniel J. Gelo and Lawrence T. Jones III is a must-read. Plus it contains some previously unpublished photographs of Comanche and Arapahos:
DANIEL J. GELO & LAWRENCE T. JONES III
Photographic Evidence for Southern Plains Armor
Article first published online: 5 MAY 2009 by Visual Anthropology Review