Katherine Oppenheimer

Short description: American biologist (1910–1972)

Katherine Oppenheimer

Oppenheimer's wartime Los Alamos identification badge photo, c. 1944

Born|

Katherine Vissering Puening

(1910-08-08)August 8, 1910

Recklinghausen, German Empire

Died| October 27, 1972(1972-10-27) (aged 62)

Panama City, Panama

Other names|

* Katherine Ramseyer
* Katherine Dallet
* Katherine Harrison

Education| University of Pittsburgh
University of Pennsylvania (BS)
Political party| Communist Party of America
Spouse(s)|

* Frank Ramseyer
(m. 1932; ann. 1933)

* Richard Stewart Harrison
(m. 1938; div. 1940)

* J. Robert Oppenheimer
(m. 1940; died 1967)

Partner(s)| Joseph Dallet Jr.
(1934–1937)
Children| 2

Katherine Vissering Oppenheimer (nee Puening; August 8, 1910 – October 27, 1972) was a German American biologist, botanist, and a member of the Communist Party of America. Her husbands were Frank Ramseyer, Joe Dallet, Richard Stewart Harrison, and physicist J. Robert Oppenheimer. The last served as the director of the Manhattan Project's Los Alamos Laboratory during World War II.

## Contents

* 1 Early life
* 2 Communism
* 3 Marriage with Oppenheimer
* 4 Manhattan Project
* 5 Later life
* 6 In popular culture
* 7 References
* 8 Sources
* 9 External links

## Early life

Katherine Vissering "Kitty" Puening was born in Recklinghausen, Westphalia, Prussia, Germany, on August 8, 1910, the only child of Franz Puening and Käthe Vissering. Although she claimed that her father was a prince and that her mother was related to Queen Victoria, this was untrue. Her mother was a cousin of Wilhelm Keitel, who later became a field marshal in the German Army during World War II, and was hanged in 1946.[1][2]

Puening arrived in the United States on May 14, 1913, aboard the SS Kaiser Wilhelm der Grosse. Her father, a metallurgical engineer, had invented a new kind of blast furnace, and had gained employment with a steel company in Pittsburgh, and the family settled in the suburb of Aspinwall, Pennsylvania. Although her first language was German, she soon became fluent in English, speaking both languages without accent. Her parents regularly took her with them on summer visits to Germany.[1][2]

After graduating from Aspinwall High School in June 1928, Puening enrolled at the University of Pittsburgh.[3] She lived at home and attended freshman classes in mathematics, biology and chemistry. Her father now worked for Koppers, and held patents for the design of blast furnaces.[4][5][6] Puening convinced her parents that it would be a good idea for her to study in Germany, and she sailed for Europe in March 1930. It is doubtful that she took any classes, but she did meet Frank Ramseyer, an American studying music in Paris under Nadia Boulanger, before sailing for home on May 19.[6]

Puening completed the first year of her degree, and married Ramseyer before a Justice of the Peace in Pittsburgh on December 24, 1932. The couple moved to an apartment near Harvard University, where Ramseyer hoped to pursue a master's degree in music. She re-enrolled at the University of Pittsburgh in January 1933, and returned to her parents' house in Aspinwall. In June 1933, Puening sailed to Europe again with her husband. After returning, she enrolled at the University of Wisconsin, although there is no record of her ever completing any classes. Puening obtained an annulment of her marriage from the Superior Court of Wisconsin on December 20, 1933. She later told friends that she had discovered evidence that Ramseyer was a homosexual and a drug addict. Puening also had an abortion.[7]

## Communism

At a New Year's Eve party later that year, Puening met Joseph Dallet Jr. After the 1927 executions of Sacco and Vanzetti, he joined the Communist Party of America in 1929. He had been involved in the International Unemployment Day protest in Chicago on March 6, 1930, that was brutally repressed by the authorities, and worked as a union organizer with the steel workers in Youngstown, Ohio. At one point Dallet unsuccessfully ran for mayor of Youngstown on the Communist Party ticket.[8][9]

Puening's parents had moved to Claygate, southwest of London, where her father represented a Chicago-based firm. On returning to the United States on August 3, 1934, after visiting family in Europe, she moved in with Dallet, becoming his common-law wife. They shared a room in a dilapidated boarding house that cost $5 per month. Gus Hall and John Gates had a room down the hall. They lived on the dole, $12.50 per month each. As the wife of a party member, Puening was allowed to join the Communist Party, but only after proving her loyalty by distributing copies of the Daily Worker on the streets. Her party dues were 10c a week.[10][8]

They separated in June 1936, and Puening went to live with her parents in Claygate, where she worked as a German-to-English translator.[10] Months went by without any word from Dallet, until Puening discovered that her mother had been hiding his letters to her. "Her mother," her friend Anne Wilson recalled, "was a real dragon, a very repressive woman. She disappeared one day over the side of a transatlantic ship, and nobody missed her. That says it all."[11]

The last letter from Dallet said that he was heading to Spain on the RMS Queen Mary to join the International Brigades fighting in the Spanish Civil War.[10][8] Puening met up with Dallet and his best friend Steve Nelson in Cherbourg, and they travelled to Paris together. After a few days there, she returned to London, and they headed south, crossing into Spain[12] where he joined the Mackenzie-Papineau Battalion, a unit composed of American and Canadian volunteers.[13]

Puening wanted to join Dallet in Spain, and finally secured permission to do so. Her trip to Spain was delayed by hospitalization for an operation on August 26, 1937, for what was initially thought to be appendicitis, but which was determined to be ovarian cysts, which were removed by the German doctors. Puening returned to England to recuperate. Before she could depart for Spain, the news arrived that Dallet had been killed in action on October 17, 1937. His letters to her were published as Letters from Spain by Joe Dallet, American Volunteer, to his Wife (1938).[13][14]

Puening went to see Nelson, who was in Paris, having been wounded in August, and they returned to New York, where she stayed with Nelson and his wife Margaret at their home in Brooklyn for two months. She then headed for Philadelphia to see her friend Zelma Baker, who worked at the Cancer Research Institute at the University of Pennsylvania. Puening enrolled at the University of Pennsylvania. There she met Richard Stewart Harrison, a medical doctor with degrees from Oxford University, who was completing his internship in the US. They were married on November 23, 1938.[15][16] She later left the Communist Party.[17]

## Marriage with Oppenheimer

Soon after, Harrison left for Pasadena, California, for his residency at the California Institute of Technology (Caltech), while Kitty remained in Philadelphia to complete her bachelor's degree in botany at the University of Pennsylvania, and was then offered a postgraduate research fellowship at the University of California, Los Angeles.[15][16] At Caltech, she worked with physicist Charles Lauritsen: the X-ray laboratory at Caltech used for physics research was also used for experimental cancer therapy research. It was at a garden party thrown by Lauritsen and his wife Sigrid in August 1939 that she met Robert Oppenheimer, a physicist who taught at Caltech for part of each year[18] and the remaining time at University of California, Berkeley. Soon after, they began an affair, one which they did not even attempt to conceal: they were frequently seen around town in Robert's car.[19] At Christmas time she went to Berkeley without her husband, to spend time with Oppenheimer.[20]

Oppenheimer invited Harrison and Kitty to spend the summer at his New Mexico ranch, Perro Caliente. Harrison declined, as he was engaged in his research, but Kitty accepted. Robert Serber and his wife Charlotte collected Kitty in Pasadena, and drove her to Perro Caliente, where they met up with Robert, his brother Frank Oppenheimer, and his wife Jackie.[21] The Serbers had met Kitty before, at Charlotte Serber's parents' house in Philadelphia in 1938.[22] The Serbers loved to ride through the pine and aspen forests and floral meadows of the Sangre de Cristo Mountains, camping with minimal food and equipment. Kitty impressed them with her riding ability; horsemanship was a normal accomplishment for women of her social class, and she had learned to ride as a girl on the riding trails around Aspinwall. Kitty and Robert rode out to stay the night with his friend Katy Page in Los Pinos, New Mexico. The following day Page rode to Perro Caliente on her bay horse to return Kitty's nightgown, which had been left under Robert's pillow.[23][21]

Kitty later told Anne Wilson that she got Robert to marry her the "old-fashioned way"—by getting pregnant.[24] In September 1940, Robert informed Harrison, and they agreed that the best way forward was for Kitty to get a divorce so she could marry Robert. Soon after, Robert shared a podium with Nelson to raise money for refugees from the Spanish Civil War, and he informed him that he was engaged to Kitty. Nelson's wife was also pregnant, and he named his daughter, who was born in November 1940, Josie in memory of Dallet. To obtain a divorce, Kitty moved to Reno, Nevada, where she stayed for six weeks to meet the state's residency requirements. The divorce was finalized on November 1, 1940, and Kitty married Oppenheimer the following day in a civil ceremony in Virginia City, Nevada, with the court janitor and clerk as witnesses.[25]

## Manhattan Project

Their child, a son they named Peter, was born in Pasadena, on May 12, 1941, during Oppenheimer's regular session at Caltech. When they returned to Berkeley, he bought a new house at One Eagle Hill with a view over the Golden Gate. Kitty worked at the University of California as a laboratory assistant. They left Peter with the Chevaliers and a German nurse and headed out to Perro Caliente for the summer. The holiday was marred when Oppenheimer was trampled by a horse, and Kitty injured her leg when she hit a car in front of her while driving their Cadillac convertible.[26][27] The United States entered World War II in December 1941, and Oppenheimer began recruiting staff for the Manhattan Project. Among the first were the Serbers, who moved into the apartment over the garage at One Eagle Hill.[28]

On March 16, 1943, the couple boarded a train for Santa Fe, New Mexico. By the end of the month, they had moved to Los Alamos, New Mexico, where they occupied one of the buildings formerly belonging to the Los Alamos Ranch School. Los Alamos was known to the occupants as "the Hill" and to the Manhattan Project as Site Y. Oppenheimer became the director of Project Y.[29] Kitty abdicated the role of post commander's wife to Martha Parsons, the wife of Robert's deputy, Navy Captain William S. Parsons.[30] She put her biologist training to use working for the director of the Health Group at Los Alamos, Louis Hempelmann, conducting blood tests to assess the danger of radiation.[31]

In 1944, Kitty became pregnant again. Her second child, a girl, was born on December 7, 1944. She named her Katherine after her mother but called her Toni. Like other babies born in wartime Los Alamos, Toni's birth certificate gave the place of birth as P.O. Box 1663.[32] In April 1945, Kitty was depressed by the isolation of Los Alamos, and she left Toni with Pat Sherr, the wife of physicist Rubby Sherr; Pat had recently lost her son, Michael, to Sudden Infant Death Syndrome. Kitty returned with Peter to Bethlehem, Pennsylvania, to live with her parents. They returned to Los Alamos in July 1945.[33][34]

## Later life

With the end of the war in August 1945, Oppenheimer had become a celebrity, and Kitty had become an alcoholic. She suffered a series of bone breaks from drunken falls and car crashes.[35][36] In November 1945, Robert left Los Alamos to return to Caltech,[37] but he soon found that his passion was no longer in teaching.[38] In 1947, he accepted an offer from Lewis Strauss to take up the directorship of the Institute for Advanced Study in Princeton, New Jersey.[39] The job came with rent-free accommodation in the director's house, a ten-bedroom 17th-century manor with a cook and groundskeeper, surrounded by 265 acres (107 ha) of woodlands. Robert had a greenhouse built for Kitty, where she raised orchids; for her birthdays Oppenheimer had rare species flown in from Hawaii.[40][41] Olden Manor was sometimes known as "Bourbon Manor";[42] Kitty and Robert liked to keep the liquor cabinet well stocked, and like many of their generation, liked to celebrate cocktail hour with martinis, Manhattans, Old Fashioneds and highballs. Both were also fond of smoking,[43] and Kitty's habit of combining too much alcohol with smoking in bed led to a plethora of holes in her bedding and at least one house fire.[36] She sometimes took too many pills, and suffered from abdominal pains caused by pancreatitis. Pain often prompted outbursts of anger.[44]

In 1952, Toni contracted polio, and doctors suggested that a warmer climate might help. The family flew to the Caribbean, where they rented a 72-foot (22 m) ketch. Robert and Kitty discovered a shared love of sailing, while Toni soon recovered. The family spent part of each summer on Saint John in the Virgin Islands, eventually building a beach house there on Gibney Beach.[45] On January 6, 1967, Robert was diagnosed with inoperable cancer, and he died on February 18, 1967.[46] Kitty had his remains cremated and his ashes were placed in an urn, which she took to St. John and dropped into the sea off the coast, within sight of the beach house.[47] She took up with Robert Serber and talked him into buying a 52-foot (16 m) yawl, which they sailed from New York to Grenada. In 1972, they purchased a 52-foot (16 m) ketch, with the intention of sailing through the Panama Canal and to Japan via the Galapagos Islands and Tahiti. They set out, but Kitty became ill, and was taken to Gorgas Hospital in Panama City, where she died of an embolism on October 27, 1972. Serber and Toni had her remains cremated, and they scattered her ashes near Robert's.[48][49][50]

## In popular culture

She was portrayed by Jana Shelden in the 1980 TV miniseries Oppenheimer, by Bonnie Bedelia in the 1989 film Fat Man and Little Boy,[51][52] and by Emily Blunt in Christopher Nolan's 2023 film Oppenheimer,[53][54] which received 13 Academy Award nominations including Best Supporting Actress for Blunt.[55][56]

## References

1. ↑ 1.0 1.1 Bird & Sherwin 2005, pp. 154–155.
2. ↑ 2.0 2.1 Streshinsky & Klaus 2013, pp. 9–10, 26–27.
3. ↑ Streshinsky & Klaus 2013, pp. 42–43.
4. ↑ US patent 1542955 Heating method and apparatus
5. ↑ US patent 1799702 Heating apparatus
6. ↑ 6.0 6.1 Streshinsky & Klaus 2013, pp. 78–79.
7. ↑ Streshinsky & Klaus 2013, pp. 80–82.
8. ↑ 8.0 8.1 8.2 Bird & Sherwin 2005, pp. 156–157.
9. ↑ Streshinsky & Klaus 2013, pp. 89–90.
10. ↑ 10.0 10.1 10.2 Streshinsky & Klaus 2013, pp. 93–94, 97–98.
11. ↑ Conant 2005, p. 184.
12. ↑ Streshinsky & Klaus 2013, pp. 104–105.
13. ↑ 13.0 13.1 "Joseph Dallet, Jr.". Abraham Lincoln Brigade Archives. http://www.alba-valb.org/volunteers/joseph-jr-dallet.
14. ↑ Streshinsky & Klaus 2013, pp. 111–117.
15. ↑ 15.0 15.1 Streshinsky & Klaus 2013, p. 119.
16. ↑ 16.0 16.1 Bird & Sherwin 2005, pp. 158–161.
17. ↑ Stern 1969, p. 357\. "I left the Communist Party. I did not leave my past, the friendships, just like that. Some continued for a while."
18. ↑ Streshinsky & Klaus 2013, pp. 120–121.
19. ↑ Bird & Sherwin 2005, p. 161.
20. ↑ Streshinsky & Klaus 2013, pp. 125–126.
21. ↑ 21.0 21.1 Bird & Sherwin 2005, p. 162.
22. ↑ Serber & Crease 1998, p. 51.
23. ↑ Streshinsky & Klaus 2013, pp. 128–129.
24. ↑ Conant 2005, p. 186.
25. ↑ Bird & Sherwin 2005, pp. 162–163.
26. ↑ Bird & Sherwin 2005, pp. 164–165.
27. ↑ Streshinsky & Klaus 2013, pp. 138–139.
28. ↑ Streshinsky & Klaus 2013, pp. 141–142.
29. ↑ Bird & Sherwin 2005, pp. 213–214.
30. ↑ Conant 2005, p. 179.
31. ↑ Streshinsky & Klaus 2013, p. 51.
32. ↑ Conant 2005, pp. 262–263.
33. ↑ Streshinsky & Klaus 2013, pp. 204–211.
34. ↑ Bird & Sherwin 2005, pp. 263–264.
35. ↑ Streshinsky & Klaus 2013, p. 207.
36. ↑ 36.0 36.1 Wolverton 2008, p. 176.
37. ↑ Bird & Sherwin 2005, pp. 333–335.
38. ↑ Bird & Sherwin 2005, p. 351.
39. ↑ Bird & Sherwin 2005, pp. 360–365.
40. ↑ Bird & Sherwin 2005, p. 369.
41. ↑ Streshinsky & Klaus 2013, pp. 234–235.
42. ↑ Wolverton 2008, p. 270.
43. ↑ Streshinsky & Klaus 2013, p. 243.
44. ↑ Streshinsky & Klaus 2013, p. 276.
45. ↑ Streshinsky & Klaus 2013, p. 251.
46. ↑ Streshinsky & Klaus 2013, p. 295.
47. ↑ Bird & Sherwin 2005, p. 588.
48. ↑ Streshinsky & Klaus 2013, pp. 301–302.
49. ↑ Serber & Crease 1998, pp. 220–221.
50. ↑ "Mrs. J. Robert Oppenheimer, 62, Nuclear Physicist's Widow, Dies". The New York Times. October 29, 1972. https://www.nytimes.com/1972/10/29/archives/mrs-j-robert-oppenheimer-62i-nuclear-physicists-widow-dies.html.
51. ↑ Shales, Tom (May 11, 1982). "The Man Behind the Bomb". Washington Post. https://www.washingtonpost.com/archive/lifestyle/1982/05/11/the-man-behind-the-bomb/ad00e2df-bf98-4487-86f4-2f35c5a49ba9/.
52. ↑ "Fat Man and Little Boy (1989)". AFI Catalog of Feature Films. https://catalog.afi.com/Film/58066-FAT-MANANDLITTLEBOY?.
53. ↑ Collis, Clark (July 21, 2023). "Oppenheimer cast: Who plays who in Christopher Nolan's real-life drama". Entertainment Weekly. https://ew.com/movies/oppenheimer-who-plays-who-biopic-christopher-nolan/. Retrieved July 24, 2023.
54. ↑ Moss, Molly; Knight, Lewis (July 22, 2023). "Oppenheimer cast: Full list of actors in Christopher Nolan film". Radio Times. https://www.radiotimes.com/movies/oppenheimer-cast-christopher-nolan-murphy/. Retrieved July 24, 2023.
55. ↑ "Oscar Nominations 2024: ‘Oppenheimer’ Dominates With 13 Nods, ‘Poor Things’ Follows With 11". Variety. January 23, 2024. https://variety.com/2024/film/awards/oscar-nominations-2024-list-1235877798/. Retrieved January 23, 2024.
56. ↑ Paul, Larisha (January 23, 2024). "Cillian Murphy, Emily Blunt, America Ferrera Become First Time Oscar Nominees". Rolling Stone. https://www.rollingstone.com/tv-movies/tv-movie-news/2024-oscars-first-time-nominees-1234952045/. Retrieved January 23, 2024.

## Sources

* Bird, Kai; Sherwin, Martin J. (2005). American Prometheus: The Triumph and Tragedy of J. Robert Oppenheimer. New York: Alfred A. Knopf. ISBN 0-375-41202-6. OCLC 56753298.
* Conant, Jennet (2005). 109 East Palace: Robert Oppenheimer and the Secret City of Los Alamos. New York: Simon & Schuster. ISBN 0-7432-5007-9. OCLC 57475908. https://archive.org/details/109eastpalacerob00cona.
* Serber, Robert; Crease, Robert P. (1998). Peace & War: Reminiscences of a Life on the Frontiers of Science. New York: Columbia University Press. ISBN 978-0-231-10546-0. OCLC 1014748640. https://archive.org/details/peacewarreminisc00serb.
* Stern, Philip M. (1969). The Oppenheimer Case: Security on Trial. New York: Harper & Row. OCLC 31389. https://archive.org/details/oppenheimercases00sterrich/page/n5/mode/2up?view=theater.
* Streshinsky, Shirley; Klaus, Patricia (2013). An Atomic Love Story: The Extraordinary Women in Robert Oppenheimer's Life. New York: Turner Publishing. ISBN 978-1-61858-019-1. OCLC 849822662.
* Wolverton, Mark (2008). A Life in Twilight: The Final Years of J. Robert Oppenheimer. New York: St. Martin's Press. ISBN 978-0-312-37440-2. OCLC 223882887. https://archive.org/details/lifeintwilightfi00wolv.

## External links

* Katherine Oppenheimer FBI file
* Letters from Spain by Joe Dallet, American Volunteer, to his Wife

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*[m.]: married
*[ann.]: annulled
*[div.]: divorced