Dr. T.G. Hamilton was a Canadian psychiatrist and member of the Manitoba legislature. After the death of his young son, he took to Spiritualist investigations with mental telepathy, Ouija boards and table tipping. Using their nanny as a medium, the Hamilton family investigated paranormal phenomena such as rappings, psychokinesis, ectoplasms and materializations. Hamilton had a large bank of cameras, shown in the album, which he used to take thousands of photographs during seances held in his family's home.
The Hamilton family's papers, scrapbooks, additional photographs and other ephemera relating to their Spiritualist research is housed in the archives of the University of Manitoba.
Hamilton's photographs have also been exhibited at the Prefix Institute of Contemporary Art in Toronto, Magasin 3 in Stockholm, the Maison européenne de la photographie in Paris, and the Metropolitan Museum of Art in New York.