There is no one person or origin that can be pinpointed for Native Spirituality. Many Native creation stories have Native Americans "rising out" of the fertile North American soil, sea, or sky. They believe that they have always been here.
Archaeologists would disagree. Archaeologists believe that the first Natives were of Mongolian descent. They believe that a band of nomadic Mongolians crossed a land/ice bridge that spanned the Bering Strait some 35,000 years ago while tracking herds of animals. They continued to head south, east, and west establishing tribes from the Arctic - Mexico.