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People File • Historical

Katherine Oppenheimer

Katherine "Kitty" Oppenheimer (born Katherine Puening) was a German-born American biologist and botanist best known as the wife of physicist J.

Updated July 30, 20261 min readCited sources

Katherine "Kitty" Oppenheimer was a German-born American biologist and botanist, best known as the wife of physicist J. Robert Oppenheimer. She was politically active and a former member of the Communist Party of America.

What it is

Katherine Oppenheimer (born Katherine Puening) was a biologist and botanist who became widely known through her marriage to J. Robert Oppenheimer, director of the Los Alamos Laboratory during the Manhattan Project. She had one child with him, a son named Peter.

Key details

Born in Recklinghausen, Germany in 1910, she worked as a biologist and botanist. She was a former member of the Communist Party of America, leaving the party in the 1930s. She died in Panama City, Panama, in 1972.

Why it matters

Katherine Oppenheimer is historically significant for her association with J. Robert Oppenheimer during a pivotal era in nuclear science. Her political background also factored into the security concerns surrounding her husband during the Cold War.

In short

  • German-born American biologist and botanist.
  • Wife of J. Robert Oppenheimer, Manhattan Project director.
  • Former member of the Communist Party of America.
  • Died in Panama City in 1972.

Quick questions

Who was Katherine Oppenheimer?
She was a German-American biologist and botanist best known as the wife of physicist J. Robert Oppenheimer.
Was Katherine Oppenheimer a communist?
She was a former member of the Communist Party of America and left the party in the 1930s.
How many children did Katherine Oppenheimer have?
She had one child with J. Robert Oppenheimer, a son named Peter.

Sources

  1. Encyclopaedia Britannicahttps://www.britannica.com/biography/Katherine-Oppenheimer
    Supports: Birth, death, occupation, and identity as J. Robert Oppenheimer’s wife.
  2. Atomic Heritage Foundationhttps://ahf.nuclearmuseum.org/ahf/profile/katherine-kitty-oppenheimer/
    Supports: Biographical details and association with J. Robert Oppenheimer and Los Alamos.
  3. Wikipediahttps://en.wikipedia.org/wiki/Kitty_Oppenheimer
    Supports: Former Communist Party membership, marriage, and family details including one child.
  4. National Park Servicehttps://www.nps.gov/people/women-of-the-manhattan-project-katherine-kitty-oppenheimer.htm
    Supports: Political activity, Communist Party membership, and connection to the Manhattan Project era.