- male, deceased (1949)
- Georges Ivanovich Gurdjieff (Георгий Иванович Гюрджиев, "Georgiy Ivanovich Gyurdzhiev" (or "Gurdjiev"); (January 13 1866? – October 29 1949), was...
- male, deceased (1947)
- Peter D. Ouspensky (March 4, 1878, Moscow - October 2, 1947, Lyne Place, Surrey, England), (Pyotr Demianovich Ouspenskii, also Uspenskii or...
- male, deceased (1953)
- Maurice Nicoll (July 19, 1884 - August 30, 1953). Born at the Manse in Kelso, Scotland. He studied at Cambridge, at St. Bartholomew's Hospital, and...
- male
- Thomas Alexandriovich de Hartmann (1885, 28 March, 1956) was a Russian composer and prominent student and collaborator of George Ivanovitch Gurdjieff.
- male, deceased (1956)
- Rodney Collin (born April 26, 1909; died May 3, 1956) was a British writer in the area of spiritual development. His work was heavily influenced by...
- male
- Claudio Naranjo is a Chilean-born anthropologist and psychiatrist who is noted for his inter-disciplinary work with mind-altering substances as...
- male, deceased (1996)
- Idries Shah, also known as Idris Shah, né Sayyid Idris al-Hashimi (Arabic: سيد إدريس الهاشمي), was an author in the Naqshbandi sufist tradition...
- male
- William Patrick Paterson is a teacher of the Fourth Way ideas who was a long-time student of Lord Pentland. Patterson is the founder/director of...
- male
- A.H. Almaas is the pen name of A. Hameed Ali, an author and spiritual teacher who writes about and teaches a mystical approach informed by modern...
- male, 68 years old
- Eugene Jeffrey (E.J.) Gold (born 1941) is an artist, author and jazz musician whose gigantic JazzArt paintings have served as backdrops for such...
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