A Memorial Divides Survivors of 1978

At a recent dedication ceremony for a Peoples Temple memorial in Oakland, Kathy Barbour, a survivor of the 1978 massacre, knelt on the lawn of Evergreen Cemetery to look at photos of the victims of Jonestown.

As nearly 200 people milled around her, Ms. Barbour, a quiet woman with white hair, peered nervously toward the path leading to the cemetery gates. “I was expecting the gauntlet,” she said.

The unveiling of a memorial was a long time coming. But the solemn event in remembrance of the mass murder and suicide led by the cult’s founder, Jim Jones, also highlighted a longstanding conflict between two groups of survivors....