Native Americans

Entry in A Dictionary of Ghost Lore
The popular belief that the "spirit guides" of many mediums appear in the form of American Indians has evolved from the fact that the spiritualist movement developed in America, where early mediums claimed their instructions from the "other side" came by way of guides who called themselves "Red Feather" or something equally Indian in origin. The topic is fully discussed in A Survey of the Occult (ed., Julian Franklyn, 1935).