There is no RationalWiki without you. We are a small non-profit with no staff – we are hundreds of volunteers who document pseudoscience and crankery around the world every day. We will never allow ads because we must remain independent. We cannot rely on big donors with corresponding big agendas. We are not the largest website around, but we believe we play an important role in defending truth and objectivity.
If everyone who saw this today donated $5, we would meet our goal for 2019.
| Fighting pseudoscience isn't free.|
We are 100% user-supported! Help and donate $5, $20 or whatever you can today with !
| Putting the psycho in|
|Men who stare at goats|
|By the powers of tinfoil|
Mary Ann Marshall (1880-1963), also known as Mary M, was a Canadian medium. She is most notable for a photo depicting tissue coming out her nose with a picture of Authur Conan Doyle's face in it which she claimed was his spirit.
Little is known about Marshall; she was of Scottish and Irish parentage but later moved to Winnipeg, Canada after World War I where she joined the Hamilton mediumship group. Some websites seem to have confused the American medium Mary Marshall with another British medium with the same name who lived between 1842-1884.
Photographs taken at the séances with Marshall were taken from 1928-1933 by the surgeon, and parapsychologist Dr. Thomas Glendenning Hamilton (1873-1935). As a spiritualist, Hamilton believed that the photos were genuine evidence for spirits. However the photographs reveal that the ectoplasm of Marshall in her seances were made of cloth, tissue, and magazine cut outs of people.