Jean Tatlock

She was born to Dr. John Strong Perry Tatlock (1876–1948) and Marjorie Fenton Tatlock.[1] Her father, who had a Ph.D. from Harvard University, was a noted and acclaimed professor of English at the University of California, Berkeley; an Old English philologist; an expert on Geoffrey Chaucer and English plays, poems, and Elizabethan era literature; and author of approximately 60 books on those subjects (The Complete Poetical Works of Geoffrey Chaucer, The Mind and Art of Chaucer).[9][10][11] John Tatlock was a professor at Stanford, and later Harvard, before returning to the Bay Area as a professor at Berkeley.[12][13] Jean had an older brother named Hugh.[1]

Tatlock began seeing Oppenheimer in 1936, when she was a graduate student in psychology at Stanford University and Oppenheimer was a professor of physics at Berkeley.[14] They met through his landlady, Mary Ellen Washburn, when Washburn held a fund raiser for communist backed Spanish Republicans. The couple started dating and had a passionate relationship, they almost married on two separate occasions.[15] Tatlock is credited with introducing Oppenheimer to radical politics during the late 1930s,[16] and to people involved with, or sympathetic to the Communist Party or related groups (including Rudy Lambert and Dr. Thomas Addis).[15]

She graduated from the Stanford University Medical School (then located in San Francisco) with the class of 1941.[17] Tatlock became a physician in the Department of Psychiatry at Mount Zion Hospital (now the University of California, San Francisco Medical Center).[18]

Oppenheimer's association with her friends was used as evidence against him during his 1954 security hearing.[19][20]

While some historians believe that Oppenheimer had an extramarital affair with Tatlock while he was working on the Manhattan Project, others assert he met with Tatlock only one time, in mid-June 1943 (June 14–15), after he was picked to head the laboratory.[21] At that meeting she told him that she still loved him and wanted to be with him.[22][23] After spending that night together (while U.S. Army agents, waiting in the street outside, had them under surveillance),[21] he never saw her again. She committed suicide a little more than six and half months after their meeting.[24][25]

Tatlock suffered from severe depression, was being treated at Mount Zion,[21] and was found dead in January 1944,[3] in her San Francisco apartment, at 1405 Montgomery Street,[9] with an unsigned suicide note. At the time of her death she was under surveillance by the FBI. There has been, at times, speculation as to whether her death was truly a suicide or not, as it has some suspicious circumstances surrounding it,[26] but in their review of all of the arguments for and against such a scenario, historians Kai Bird and Martin Sherwin conclude that there is simply not any conclusive evidence of foul play.[27]

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