This is a quest for knowledge that I hope some of the board members can help me with. I recently watched a very interesting show on the intermarriage of African slaves with various Nations, though the Cree were talked about at length. African slaves, as a benefit, were guranteed free offspring; though heavily persecuted, the Cree were still free.
It made me think of Santeria - an amalgam of the religion of the African Yorubas and Catholicism. What are the amalgams in practice today that came from the African tribes melding with the various Indian Nations spiritual practices?

I don't think there are any.

It was individuals who came in, not whole nations. We do see some crossover beliefs with the Christians, but not with other religions where the tribes came in contact with only a few people at a time.

It may have gone the other way, though. Rabbit is one of the American Indian trickster figures, and there's some evidence that the B'rer Rabbit stories are influenced by AmerInd culture.