Final answer:
The normative style for Indian painting recognized between 1930 and 1960 is not directly identified, but the era saw Native artists like Oscar Howe challenging stereotypes and pushing for individual expression within Native American art.
Step-by-step explanation:
The references indicate significant developments in the representation and perception of Native American art during that time. Artists like Oscar Howe (Yanktonai Sioux), Alex Janvier (Chipewyan [Dene]), and Robert Davidson (Haida) challenged preconceived notions and stereotypes about Native art, advocating for individualism and modern artistic value within their cultural context.
Howe, in particular, criticized the restrictions placed on Native artists and asserted the right to individual expression and competition on an international stage. Meanwhile, George Catlin capitalized on public fascination with Native Americans by presenting them within popular White stereotypes, seeking to profit from his Indian Gallery despite the questionable accuracy of his portrayals.
The actions of such artists reflected a broader movement to bring indigenous people's art into mainstream recognition while respecting authenticity and cultural significance. Their work and advocacy helped pave the way for modern and contemporary Indigenous artists to be seen and valued in the art world.