All-American Ghost

In her New York Times essay “The Ghost Story Persists in American Literature. Why?,” Parul Sehgal writes about how ghost stories throughout American literature have functioned as social critique, manifestations of protest and redress that reveal “cultural fears and fantasies,” and which understand “how strenuously we run from the past, but always expect it to catch up with us.” Write a story that uses a dark or troubling part of history as the impetus for an appearance of a ghostly presence. How does the ghost serve “as a vessel for collective terror and guilt, for the unspeakable” in your story?