Source: https://commons.wikimedia.org/wiki/File:Mumler%27s_photographs_in_Harpers_Weekly.jpg

The Dressy Ghosts of Victorian Literature

Realism was exceptionally well suited (heh) for elaborate descriptions of spectral clothing.
"Spirit" photograph, supposedly taken during a seance, actually a double exposure or composite of superimposed cut-outs, showing woman with portraits of men and women around her head

How Spirit Photography Made Heaven Literal

Are the departed watching over us, and if so, what are they wearing? Victorian spiritualists believed that ghosts could be captured on film.
Ectoplasm Helen Duncan

Ectoplasm and the Last British Woman Tried for Witchcraft

Spiritualist medium Helen Duncan was photographed emitting ectoplasm, supposedly proof of her ability to contact the dead.
1940s ghost stories

Why Were Americans Obsessed With Ghosts in the 1940s?

In 1940s America, two folklorists undertook the task of collecting and studying the "modern" ghost stories of their time.
Ghostly road

A Belief in Ghosts: Poetry and the Shared Imagination

An essay from poet Dorothea Lasky on poetry, ghosts, and the shared imagination.