Kane's People

"The researchers don't know who these people were. There are no marked graves. There however, records of a religious sect that mysteriously... Their spiritual leader was a medium who led his followers out to California in the early 1800s to start an utopian society. They dissappeared near Cuesta Verde. They were believed (to be) massacred by the Indians."

- Tagina Barrons about Rev. Henry Kane's cult.

Kane's People (credited from the end credits of Poltergeist II: The Otherside) is the name of a forgotten, Satanic 19th century utopian cult whose spirits alongside the different souls of the dead are supporting antagonists of the Poltergeist film series, and their primary member and leader is Reverend Henry Kane.

History
In the early 1800s, there exists a religious sect in the American Midwest whose spiritual leader named Reverand Henry Kane was a medium, a psychic who can see into the future and communicate with the spiritual realm. During that time, he led his followers out to California to began a Utopian society. They disappeared near an area in the valley within California under mysterious circumstances.

Many people thought they were murdered by Native Americans.

But in reality, Kane led his 'people' on their trek to an undergound cave system and sealed themselves because he told them that the apocalypse was coming. The mad preacher predicted the date of the end of the world came and went, but he won't let them leave. They all believed him and worshipped him as a prophet of God. They all soon die of starvation and their decaying bodies remained within the tomb of their own making.

Soon a century later, their subterrian mass grave would be built over by a cemetery whose buried cadavers would be left as it moved a decade later to a dffierent, yet near location in the same valley that is forvever named Cuesta Verde. The souls of this forgotten cult and the modern people they came across would be disturbed and unleash their fury.

Return of Kane's People
The souls of these forgotten cultists and the ghosts they are with, came before a little girl named Carol Anne Freeling that night they appeared on a television in her family's house. They later reappeared with the ghosts that other night and destroyed the Freelings' home and cause havoc upon the frightened neighbors Cuesta Verde after they put Carol Anne and her family through this entire ordeal.

The cultists returned to hunt down Carol Anne and her family who were later helped by Tangina an dher friend Taylor. It happened not long after their remains were discovered by Taylor and Tangina in a cavern below the old cemetery that later became the neighborhood of Cuesta Verde.