Cohen on a 1998 Russian stamp, with her first name as "Leontina"
Born
Leontine Theresa Petka
(1913-01-11)January 11, 1913[1]
Adams, Massachusetts, U.S.[1]
Died
December 23, 1992(1992-12-23) (aged 79)[1]
Moscow, Russia[1]
Nationality
American
Spouse
Morris Cohen
Awards
Hero of the Russian Federation (1996) Order of the Red Banner, Order of Friendship of Nations[1]
Espionage activity
Allegiance
Soviet Union
Service years
1939–1961 (arrest)
Codename
Helen Kroger
Lona Cohen (Russian: Леонтина Владиславовна Коэн, Leontina Vladislavovna Koen; January 11, 1913 – December 23, 1992), born Leontine Theresa Petka, also known as Helen Kroger, was an American who spied for the Soviet Union. She is known for her role in smuggling atomic bomb diagrams out of Los Alamos. She was a communist activist before marrying Morris Cohen. The couple became spies because of their communist beliefs.
They were both arrested in Britain in 1961, and convicted of espionage for the Soviet Union the following year. After serving part of a prison sentence, Lona Cohen and her husband were exchanged by the British in 1969. They lived the remainder of their lives in Moscow, teaching spy skills.
passport. Lonsdale would pass the documents in microdot format to Lona and Morris Cohen, two American communists who had moved to the UK using New Zealand...
Rudolph Abel. He also first met the American communist couple Morris and LonaCohen (UK cover names Peter and Helen Kroger). In 1954, Konon Molody moved to...
PMID 6699905. S2CID 24753487. Klaus Fuchs Oscar Seborer Saville Sax LonaCohen Morris Cohen (spy) Manhattan Project Los Alamos J. Robert Oppenheimer Oppenheimer...
postwar security was tightened at Los Alamos. LonaCohen (codenamed "LESLE") and her husband Morris Cohen (codenamed "LUIS" and "VOLUNTEER") had run the...
lona in Wiktionary, the free dictionary. Lona may refer to: Lac de Lona, lake in Valais, Switzerland Lona, Samoa, village on the island of Upolu Lona...
Harry Houghton, Ethel Gee, Gordon Lonsdale, and most famously Morris and LonaCohen (cryptonym Peter and Helen Kroger). Ware Group: Sleeper spy ring in US...
Lauchlin Currie Lee Pressman LonaCohen Louis F. Budenz Martha Dodd Stern Michael Lance Walker, son of John Anthony Walker Morris Cohen Morton Sobell Nathan Gregory...
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