“Spirit Photography,” advertisement. Source: Co. Fair News
In 1861 a Boston photographer named William H. Mumler discovered that additional images would appear if a glass photographic plate was exposed twice. Because photography was then in its infancy these ghostly double exposures amazed all who saw them and quickly elevated this new art form into the mystical realm.
Mrs. Annis Cobb and her dummy. Mrs. Cobb impersonating the spirit “lacemaker.” RG3507.PH11-10
Unidentified man with supposed spirit floating above his head. RG3507.PH11-6
“A fair Anonyma and her attendant spirit” RG3507-11-7
Unidentified woman with a distorted spirit. RG3507-11-8