[2] 2 November 1969, according to some sources.
Father: Frederick Friedman (translator)
Mother: Rosa Friedman
Brother: M.J. Friedman
Wife: Elizebeth Friedman (cryptologist, m. 21-May-1917, d. 1980, two children)
Daughter: Barbara
Son: John
High School: Pittsburgh Central High School, Pittsburgh, PA (1909)
University: Michigan State University (attended)
University: BS, Cornell University (1914)
US Defense Department Chief of Cryptography, National Security Agency (1952-55)
US Defense Department Chief of Cryptography, Armed Forces Security Agency (1949-52)
US Defense Department Chief Cryptanalyst (1941-47)
US War Department Chief Cryptanalyst (1941-47)
US Army to Director, Signal Intelligence Service (1918-41)
Alion Science and Technology Ciphers & Genetics Mgr., Riverbank Labs (1915-18)
Alion Science and Technology Genetics Mgr., Riverbank Labs (1915-16)
Commendation for Exceptional Civilian Service 1944
Congressional Order of Merit 1946
National Security Medal 1955
Military Intelligence Hall of Fame
RAND Corporation
Naturalized US Citizen 1896
Nervous Breakdown 1939-40
Nervous Breakdown 1949-50
Heart Attack Apr-1955
Heart Attack May-1969
Heart Attack 12-Nov-1969 (fatal)
Jewish Ancestry
Romanian Ancestry
Russian Ancestry
Risk Factors: Depression
Author of books:
The Index of Coincidence and Its Applications in Cryptography (1922)
Six Lectures on Cryptology (1963, essays)
The Shakespearean Ciphers Examined (1957, non-fiction; with Elizebeth Friedman)