Carlyle Ferdinand Jacobsen, Stanley Smith Stevens, Ernest Ropiequet Hilgard, and Don Marquis, at an American Psychological Association Conference

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left to right: Carlyle Ferdinand Jacobsen (1902-1974), Professor of Psychology, Yale University; Stanley Smith Stevens (1906-1973), Professor of Psychology, Harvard University; Ernest Ropiequet Hilgard (1904-2001), hypnosis expert and Professor of Psychology, Stanford University; and Don Marquis, Professor of Psychology, University of Michigan. The photograph was taken April 1937 at a meeting of American Psychological Association.


  • Jacobsen, Carlyle Ferdinand 1902-1974
  • Stevens, S. S (Stanley Smith) 1906-1973
  • Hilgard, Ernest R (Ernest Ropiequet) 1904-2001
  • Marquis, Don
  • Yale University
  • Harvard University
  • Stanford University
  • University of Michigan
  • American Psychological Association

Cite as

Smithsonian Institution Archives, Accession 90-105, Science Service Records, Image No. SIA2008-4341

Repository Loc.

Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520


  • 1937
  • April 3, 1937

Restrictions & Rights

  • No access restrictions Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at
  • Copyright Not Evaluated


  • Hypnotism
  • Psychology


Black-and-white photographs

Local number

SIA Acc. 90-105 [SIA2008-4341]

Physical description

Gelatin silver prints

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