William H. Mumler, [Unidentified woman seated with a female “spirit” in background], 1869–1878, albumen silver print. The J. Paul Getty Museum, 84.XD.760.1.25. CC0 / public domain, Getty Open Content. An example of Mumler’s photographs; not identified as an exhibit from the 1869 hearing, and not evidence of a spirit.
In New York in spring 1869, William H. Mumler faced a legal examination over photographs said to contain images of the dead. Customers and photographers described watching his work without detecting a trick. The prosecution challenged both the pictures and the identification of their faint additional faces. The resulting discharge is sometimes presented as a scientific vindication. The contemporary report instead records a magistrate declining to send the charge forward on the evidence before him.
The dispute concerned obtaining money by pretended spirit photographs. It therefore involved several questions: whether an extra face resembled a deceased relative, whether an ordinary photographic process could create it, and whether Mumler knowingly obtained payment through a false representation. An answer to one did not automatically answer the others. The surviving published accounts show witnesses and advocates repeatedly moving between those different standards.
The undercover sitting
The Harper’s Weekly account dated 8 May 1869 describes City Marshal Joseph H. Tooker visiting Mumler under an assumed name. The investigation followed an instruction from Mayor A. Oakey Hall and the involvement of a newspaper reporter. Tooker obtained a photograph with an additional face, but said that he recognised no relative in it. The account reports a suggestion that the face was his father-in-law, which he rejected.
That sitting gave the authorities a transaction and a disputed representation to examine. It did not, by itself, demonstrate how the extra image had been made. Nor could other customers’ claims of recognition turn Tooker’s failure to recognise his own picture into a successful identification. Each sitting had its own circumstances, and the court heard differing descriptions of what was promised and what the customer believed afterwards.
What the contemporary reports preserve
The most detailed source used here is the June 1869 Spiritual Magazine account, printed pages 241–260. Its introduction says that Judge John W. Edmonds supplied copies of New York Tribune and World reports, from which it reproduced extracts. It is a Spiritualist publication presenting newspaper testimony, statements and arguments; it is not a certified, complete court transcript. Its sympathy for Mumler makes attribution particularly important.
The legal setting is independently clarified by Cornell’s catalogue of Elbridge T. Gerry’s published prosecution argument. The pamphlet’s title identifies a preliminary examination before Justice Dowling and dates Gerry’s argument to 3 May 1869. That catalogue establishes the publication and its description of the proceeding. The full pamphlet was not accessible for this account, so its contents are not treated as a second transcript checked against the magazine.
Photographers who watched the process
In the magazine’s report, Wm. P. Slee, a Poughkeepsie photographer, described Mumler producing additional figures in Slee’s own gallery using its apparatus. Slee said that he could not detect deception. Under questioning, however, he allowed that similar effects could be made by ordinary means, although he had not himself tried to reproduce them. His evidence supported an observation about what he had failed to detect, rather than a demonstration that deception was impossible.
William W. Guay, who assisted Mumler, described a business arrangement in which he received half the profits. He explained that a spirit likeness was not necessarily promised as a particular named relative: the supposed visitor could be someone sympathetic to the sitter. He also acknowledged ordinary ways in which additional forms might appear, including another person, reflections or chemical processes. His role and beliefs mattered when weighing his confidence in the results.
These exchanges expose a central weakness in the argument from supervision. A visitor could see glass being prepared, a plate put into a holder and a picture developed, yet still lack a continuous account of every opportunity affecting the exposure. Conversely, proposing a possible photographic trick was not the same as establishing that Mumler had used that method in the charged transaction. The testimony should not be rewritten as either a sealed laboratory test or a complete reconstruction of fraud.
Recognition and its uncertainties
Artist Samuel R. Fanshaw said that he entered the investigation sceptically and watched the preparation and development of a plate. He described keeping the camera in view, checking the room and looking behind a screen. In the resulting picture he believed he recognised his mother, who had died many years earlier. He reported that relatives agreed. He also acknowledged having made a portrait of her from memory.
Those details explain why Fanshaw found the image persuasive: his attention to the room and his familiarity with the face reinforced each other. They do not supply an independent identification procedure. The recognition came from people who already knew whom they were looking for, and the published report contains no blinded comparison of candidate faces. A sincere recognition and an externally verified identity remain different kinds of evidence.
Charles F. Livermore likewise described seeing a plate prepared and developed, and identifying an additional figure as his deceased wife. Cross-examination narrowed that identification. The report records his reliance on general outline and size rather than a distinctive feature. He already possessed portraits of her. The questioning illustrates how an initially confident identification could become less specific when the witness was asked what, exactly, the picture showed.
Edmonds, himself a prominent Spiritualist, reported recognising one of two faces obtained during his sittings. His testimony about a personal experience must be distinguished from Dowling’s decision as the examining magistrate. The presence of a witness who had held judicial office did not make his interpretation a legal finding that spirits had appeared.
Mumler’s explanation and the opposing arguments
In a statement reproduced by the magazine, Mumler placed his first accidental additional figure in Boston in 1861, while he was an engraver experimenting with photography. He said that his initial explanation was an inadequately cleaned plate retaining an earlier image. He then claimed that later results under closer observation excluded that possibility and convinced him of a power beyond ordinary human control. This is his account of his discovery and changing interpretation, rather than an independently established origin story.
Mumler denied using any trick or device. He maintained that people had been allowed to inspect his work, while explaining that repeated investigations interfered with earning a living. His refusal to perform further tests after arrest was, he said, on his lawyer’s advice. The report also records Dowling correcting the suggestion that Mumler’s apparatus had been seized: the magistrate said that he had declined to authorise its seizure. Neither point establishes what a fresh, controlled experiment would have found.
Defence counsel Townsend argued that the charge required a knowingly false representation. Even an erroneous belief about spirits would not, in his argument, automatically establish the offence. He accepted that imitation pictures could be made but disputed the inference that his client must therefore have used such a method. The distinction was between demonstrating a possible explanation and proving the alleged conduct of a particular defendant.
Gerry’s prosecution argument, as summarised in the magazine, challenged the move from witness recognition to supernatural agency. He argued that skilful deception could escape observers and that the evidence justified carrying the matter further. His position should not be softened into an agreement that the phenomena were genuine merely because photographers had been unable to identify a trick during particular sittings.
What the discharge established
At the end of the magazine’s account, Dowling expressed suspicion of trickery but said that the evidence was insufficient to justify sending Mumler before the grand jury. He discharged him. That was the outcome of the preliminary examination. It was not a jury’s acquittal after a full trial, a conviction for photographic fraud, or a judicial certification of communication with the dead.
The case remains useful because the competing claims can be separated without pretending that the photographs settled them. There was a paid photographic practice, an official investigation, witnesses who reported recognition and observation, and an unsuccessful attempt to carry the charge forward. The available reporting does not establish the supernatural cause of the images or identify one demonstrated mechanism for every photograph discussed.
Sources, image and related reading
This account uses the contemporary reporting reproduced in the Spiritual Magazine, June 1869, particularly the photographer and recognition testimony, Mumler’s statement, the closing arguments and Dowling’s decision. Selected original pages were checked visually against the extracted text. The Harper’s Weekly transcription supplies a separate contemporary account of the undercover sitting. The limitations of each surviving edition are retained rather than combining their reports into an invented verbatim transcript.
The Getty photograph illustrates Mumler’s practice and is catalogued to 1869–1878. Its sitter is unidentified; it is not presented as a photograph from Tooker’s sitting or an exhibit demonstrably introduced at the hearing. Compare the later Margery investigations in Boston for another dispute about what observers controlled, what they recognised and what an investigative result actually established.
Map location — approximate area: The pin uses Manhattan borough area in New York City. It is a rounded locality reference, not the studio, hearing room or a private address. Coordinate reference: U.S. Census Bureau 2025 Gazetteer representative area point. It gives no directions to private property.