Search results
Genevieve Marie Grotjan Feinstein (April 30, 1913 – August 10, 2006) was an American mathematician and cryptanalyst. She worked for the Signals Intelligence Service throughout World War II, during which time she played an important role in deciphering the Japanese cryptography machine Purple, and later worked on the Cold War-era Venona project .
Genevieve Grotjan Feinstein was a skilled cryptanalyst whose discovery in September 1940 changed the course of history. Her successful breakthrough enabled the Army Signal Intelligence Service (SIS) to build an analog machine that solved the Japanese diplomatic system known as "Purple."
Meanwhile, in 1946, Grotjan and her husband welcomed a son they named Ellis. That same year, Grotjan, by now Genevieve Grotjan Feinstein, received the Exceptional Civilian Service Award from Brig. Gen. Paul Everton Peabody for her wartime service.
Mar 13, 2020 · Genevieve Grotjan Feinstein. Genevieve Grotjan attended the University of Buffalo, hoping to become a math teacher. With no teaching positions available during the Great Depression, she took a job as a statistical clerk with the Railroad Retirement Board in Washington, D.C.
Genevieve Marie Grotjan Feinstein was an American mathematician and cryptanalyst. She worked for the Signals Intelligence Service throughout World War II, during which time she played an important role in deciphering the Japanese cryptography machine Purple, and later worked on the Cold War-era Venona project.
Mar 29, 2018 · Two great pre-World War II women cryptologists were Agnes Meyer Driscoll and Genevieve Grotjan Feinstein. The significant strides they made for their gender paved the way for other cryptologists, male and female.
Jun 20, 2022 · They had a familiar problem, and they were quickly able to recover the enciphering table for the sixes But 18 months later they were still puzzled by the enciphering of the twenties Then, on 20 September 1940, Genevieve Grotjan, an SIS codebreaker, made a discovery that opened the way for the recovery of the PURPLE machine.
