“When I glanced at the photo on my mobile, I saw this dark female figure in the picture. I looked at the window again and there was no-one in the room.
“I knew straight away that the woman in the photo was a ghost and showed the snap to Paul.
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Alcatraz Prison is considered to be one of the most haunted jailhouses in America
“From that point onwards, I wasn’t interested in the Alcatraz tour anymore. I just kept looking at the picture over and over again!”
School Site Manager, Paul, has never believed in ghosts but admits that the strange snapshot has shaken his confidence.
The 50-year-old from Birmingham explained, “When I first saw the photo, I tried to rationalize the female figure away by saying it was just Sheila’s reflection.
“But with closer inspection, it’s obvious that this is not the case at all. The woman’s hair and clothing is from a different era – it looks like she’s from the 1930s or 40s.
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The snap was taken by Sheila Sillery-Walsh, who visited the jail with partner Paul Rice
“I have no logical explanation for the girl in the picture – I’m baffled by her! It’s funny because she’s staring right at the camera, with a knowing look.
“I was really skeptical about ghosts before but I’m a bit more of a believer now. I do think that the woman in the photo is a ghost.”
The couple have tried to find out the identity of the ghostly woman in the photo.
Sheila said: “I contacted the staff at the Alcatraz site but they replied, saying none of the old-timers could recognise the woman in the picture.
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The prison operated from 1934 to 1963
“I am so curious to know who she could be though – perhaps she was a female visitor of a prisoner who kept returning back. I would love to know why she’s shown herself in my photo.
“Weirdly when we were near that cell, a woman came on the audio tour who used to visit a prisoner. It makes you wonder.”
Alcatraz Federal Penitentiary was a maximum high-security Federal prison, which operated from 1934 to 1963.
The legendary jailhouse housed some of America’s most ruthless criminals including gangster Al Capone and Robert Stroud, the Birdman of Alcatraz.
Although officials for Alcatraz publicly dismiss reports of ghosts at the site, several former guards and park rangers have revealed their paranormal experiences at the prison.
Vintage Pictures Of 'Ghosts'
(01 of17)
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A photograph of a group gathered at a seance, taken by William Hope (1863-1933). The information accompanying the spirit album states that the table is levitating - in reality the image of a ghostly arm has been superimposed over the table-stand through double exposure. Hope's spirit album photographs use multiple exposure techniques to render the appearance of ghostly apparitions. Hope founded the spiritualist society known as the Crewe Circle and his work was popular after World War One when many bereaved people were desperate to find evidence of loved ones living beyond the grave. Although his deception was publicly exposed by a private investigator in 1922, he continued to practice. (Photo by SSPL/Getty Images)
(02 of17)
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A portrait photograph possibly taken by William Hope (1863-1933). A young woman's face appears as if floating above the sitters, draped in a cloak. Hope may have already held her photograph in his studio, or he may have asked the couple to supply photographs of deceased relatives under the pretence of using the image to contact the spirit world. Hope's spirit album photographs use multiple exposure techniques to render the appearance of ghostly apparitions. Hope founded the spiritualist society known as the Crewe Circle and his work was popular after World War One when many bereaved people were desperate to find evidence of loved ones living beyond the grave. Although his deception was publicly exposed in 1922, he continued to practice. (Photo by SSPL/Getty Images)
(03 of17)
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A photograph by William Hope (1863-1933). A woman's face appears above the couple - identified at the time as the sister of a man prominent in the Spiritualist Church. Her cloak adds to the ethereal effect. The signature in the upper left hand corner is by one of the sitters, to authenticate the plate. The couple are the parents of the person who compiled the spirit album. Hope's spirit album photographs use multiple exposure techniques to render the appearance of ghostly apparitions. Hope founded the spiritualist society known as the Crewe Circle and his work was popular after World War One when many bereaved people were desperate to find evidence of loved ones living beyond the grave. Although his deception was publicly exposed by a private investigator in 1922, he continued to practice. (Photo by SSPL/Getty Images)
(04 of17)
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A photograph of a man, taken by William Hope (1863-1933). A woman's face appears in a 'misty' cloud to the right of the man - identified as that of his deceased first wife. Hope may have already held her photograph in his studio, or he may have asked the man to supply her photograph under the pretence of using the image to contact the spirit world. The signature in the upper left hand corner is the sitter's, authenticating the plate. Hope used multiple exposure techniques to render the appearance of ghostly apparitions. He founded the spiritualist society known as the Crewe Circle and his work was popular after World War One when many bereaved people were desperate to find evidence of loved ones living beyond the grave. (Photo by SSPL/Getty Images)
(05 of17)
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A photograph of Will Thomas, taken by William Hope (1863-1933). A man's face appears in a haze of drapery on the right of the photograph. Thomas, a medium from Wales, did not recognise the superimposed image. Thomas has signed the bottom of the photograph, 'Sincerely Yours Will Thomas' - perhaps this indicates a friendship with Hope. Hope's spirit album photographs use double and even triple exposure techniques to render the appearance of ghostly apparitions around the sitter. Hope founded the spiritualist society known as the Crewe Circle and his work was popular after World War One when many bereaved people were desperate to find evidence of loved ones living beyond the grave. Although his deception was publicly exposed in 1922, he continued to practice. (Photo by SSPL/Getty Images)
(06 of17)
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A photograph of Mrs Bentley, once the President of the British Spiritualists Lyceum Union, taken by Wylie. A superimposed image - that of Mrs Bentley's deceased sister's face - appears at the lower right of the photograph. (Photo by SSPL/Getty Images)
(07 of17)
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A strange visage appears on a piece of cloth next to the head of medium Marthe Beraud (aka Eva C) during a seance, circa 1910. Picture taken from 'Les Phenomenes dits de Materialisation' by Juliette Bisson. (Photo by Hulton Archive/Getty Images)
(08 of17)
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A couple are terrified by a spectral apparition, circa 1880. (Photo by Hulton Archive/Getty Images)
(09 of17)
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1865: A ghostly figure appears to a couple eating their dinner in a country cottage. London Stereoscopic Company Comic Series - 225 (Photo by London Stereoscopic Company/Getty Images)
(10 of17)
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circa 1865: The ghost of a woman appears to a girl at prayer by her bedside. London Stereoscopic Company Comic Series - 183 (Photo by London Stereoscopic Company/Getty Images)
(11 of17)
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circa 1865: A man clinging to a tree in the face of an apparition in a forest. London Stereoscopic Company Comic Series - 72 (Photo by London Stereoscopic Company/Getty Images)
(12 of17)
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circa 1865: An apparition appearing to two country folk in their kitchen. London Stereoscopic Company Comic Series - 10 (Photo by London Stereoscopic Company/Getty Images)
(13 of17)
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circa 1865: An apparition causes havoc by menacing two people in their kitchen. London Stereoscopic Company Comic Series - 13 (Photo by London Stereoscopic Company/Getty Images)
(14 of17)
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circa 1865: A frightened man praying on his knees to an apparition. London Stereoscopic Company Comic Series - 17 (Photo by London Stereoscopic Company/Getty Images)
(15 of17)
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circa 1865: A ghost floating slowly towards a dishevelled man hiding in a corner. London Stereoscopic Company Comic Series - 169 (Photo by London Stereoscopic Company/Getty Images)
(16 of17)
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CIRCA 1865: A ghost attacks a man with a sword. Early double-exposure by G. Maerkl. Vienna. Carte-de-visite Photographie. Arond 1865 (Photo by Imagno/Getty Images)
(17 of17)
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If viewed from certain angles, glass on its own can act as a mirror. In the past this was used to create 'ghosts' on stage. The ghost was actually an actor under the stage. An angled plane of glass reflected light from the ghost towards the audience, who would see the ghost but not the glass. (Photo by SSPL/Getty Images)