In the 1920s and 30s, sweetly smiling Indian maidens (with
bare shoulders,
and bare from the knees down) became popular calendar art. In 1936,
Edward Mason Eggleston restored some bare-breasted authenticity in The
Flaming Arrow.
But
that was as far as his authenticity went. Women had begun
covering their breasts before the Sioux war bonnet was
invented. Only men wore
it, and Sioux of neither sex traveled in a Pacific Ocean
canoe. This is fantasy
art.