Haunted by whatever.  From Unknown, 1939.

From The Picket, 1994.  See Of Feeding & Caring For Sheet Ghosts.

From The Cosmic Survey, 1922.

A summoning wig you won't believe exists.

We think twice before boarding any transport alonside shadow people, but admittedly it all depends upon where one's going.  From Duke's 1965 yearbook.

From The Spooktator, Oct. 24, 1997.

"All our yesterdays are hazy ghosts."  From Bowman Gray's 1964 yearbook.

A Hallowe'en ghost party.  From Wesleyan College's 1922 yearbook.  See How to Hoodoo Hack a Yearbook.

Grave-robbing sheet ghosts haunt Denison's 1963 yearbook.

Apparently we're not the only ones who mark our calendars with the three states of haunted barn ghosts -- awake nights, awake [in the day], and asleep in the nighttime.  From Antioch News, Sept. 1996.

An illustration by Arthur Hughes for Speaking Likenesses (1874).

"In his dream, he saw the spirits from the graveyard." From Voodoo Island by Michael Duckworth, 1989.

From Kladderadatsch, 1926.

Use of the Dead to the Living, 1828.

From The Bullet newspaper, 2009.  See Seance Parlor Feng Shui.

A spirit photograph from State Teacher's College, Farmville, Va.'s 1934 yearbook.