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COLLECTION Identifier: MS Am 3285

Ludlow-Santo Domingo Library collection on Timothy Leary


Contains materials related to Timothy Leary, who explored the therapeutic uses of psychedelic drugs, including articles, interviews, press and promotional materials, business cards, bumper stickers, videotapes, cassettes, and papers relating to Leary's book, Flashbacks.


  • circa 1963-1995

Language of Materials

English, French, German, Czech, and Portuguese.

Conditions Governing Access

There are no restrictions on physical access to this material. Collection is open for research.This collection is shelved offsite at the Harvard Depository. Retrieval requires advance notice. Readers should check with Houghton Public Services staff to determine what material is offsite and retrieval policies and times.


2.5 linear feet (4 boxes)
Contains ephemeral material relating to Timothy Leary, including publications featuring articles by or interviews with him, a manuscript entitled The Psychedelic Experience, and a copy of the Psychedelic Prayerbook, by Leary with Ralph Metzner. Further materials include Leary's business cards from different eras, press and promotional items related to public appearance and meditation sessions led by Leary, and album covers from Leary's recordings. Flyers include those for events with Allen Ginsberg and Jimi Hendrix. Additional papers include press kits and other materials relating to Leary's book, Flashbacks and High Priest. The testimony given by Leary to United States Senator Thomas Dodd in 1966 is included, as are records of the Timothy Leary Defense Fund and flyers related to his freedom. Further includes materials relating to Leary's 1966 published interview in Playboy, with signed and unsigned copies of the article, galleys and typescrift drafts, and related clippings. Additional materials include many videocassettes of Leary speaking, including those recorded from television broadcasts, as well as published DVDs of Leary video recordings.
Scope and Contents Includes audiovisual and/or digital media: ; VHS tapes, beta tapes, cassette tapes, and DVDs.

Biographical / Historical

The Ludlow-Santo Domingo Library is the world’s largest private collection of material on altered states of mind. The collection was formed by Julio Mario Santo Domingo Jr. (1957–2009), an investment advisor who resigned his business interests to devote himself to collecting. Timothy Leary (1920-1996) was a psychologist who looked into the therapeutic uses of psychedelic drugs in controlled situations. Leary was a clinical psychologist at Harvard University, where he was involved with the Harvard Psilocybin Project from 1960-1962. He and colleague Richard Alpert (also known as Ram Dass) were fired from Harvard University in May, 1963, based on these experiments. Leary continued to write about the therapeutic uses of psychedelic drugs and transhumanist concepts. Leary was arrested numerous times in multiple countries.


Materials have been arranged in alphabetical order loosely by type.

Physical Characteristics and Technical Requirements

Special equipment or surrogate required; consult Houghton staff.

Physical Location

Harvard Depository

Immediate Source of Acquisition

2015M-85 and 2013M-113. Deposited by Julio Mario Santo Domingo III; received: 2012 April. Forms part of the Julio Mario Santo Domingo Collection.

Processing Information

Processed by Betts Coup, 2019.
Link to catalog
Santo Domingo, Julio Mario, collector. Ludlow-Santo Domingo Library collection on Timothy Leary, circa 1963-1995 (MS Am 3285): Guide.
Houghton Library, Harvard University.
2019 March 29
Description rules
Language of description
Finding aid written in English.

Repository Details

Part of the Houghton Library Repository

Houghton Library is Harvard College's principal repository for rare books and manuscripts, literary and performing arts archives, and more. The library's holdings of primary source material are managed by an expert staff and shared with scholars, students and the public in the reading room.

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