Lawyer and psychical researcher (1880-1969), a one-time president of the Society for Psychical Research, with a particular interest in mental mediumship and the cross-correspondences.

British psychical researcher (1881-1943) who wrote on mediumship, precognition and survival issues. He published two books, Evidence of Personal Survival from Cross-Correspondences and Foreknowledge, later reprinted in a single volume The Future and Beyond. 

British parapsychologist (1952-2018) who in the 1970s reported successful ganzfeld telepathy experiments. The results were later cast in doubt by claims of deception by a prominent sceptic. 

Psychologist and psi researcher at the University of Northampton, with research interests in dreams, survival and the neuropsychology of anomalous experiences. 

Social anthropologist and psi researcher, studying distant intentionality, healing and special gifted populations.

American experimental psychologist and parapsychologist, noted for her ‘sheep-goat’ theory that experimental subjects’ ESP ability relates to their belief or otherwise in the reality of psychic phenomena.

German-born US-based parapsychologist (1928-2011) who pioneered the use of random event generators in psychokinesis research, often achieving highly significant scoring rates in his experiments.

German clinical psychologist and parapsychologist who has carried out research in distant interaction, telepathy and healing.

Arthur Schopenhauer (1788-1860) was a German philosopher whose metaphysics were partly shaped by personal psychic experiences.

Gary Schwartz is a psychology professor at the University of Arizona who has engaged in mediumship and psi healing research. He is the author of The Afterlife Experiments (2002).