William Frederick Friedman

World War II · US Army

Record	Title	Source Website	Type	Created
The-United-States-Capitol-building-with-the-dome-lit-up-at-night.jpg		Forces War Records	Image	6/06/2020
Lincoln Memorial.jpg		Forces War Records	Image	30/09/2020
Friedman, William Frederick - Page 1	US, WWII "Old Man's Draft" Registration Cards, 1942	Forces War Records	Image	21/06/2016
Friedman, William Frederick - Page 1	US, WWI, Draft Registration Cards, 1917-1918	Forces War Records	Image	8/06/2016
download (12).jpg		Forces War Records	Image	14/01/2021
AdobeStock_82664008.jpeg		Forces War Records	Image	22/10/2020
Jefferson Memorial.jpg		Forces War Records	Image	15/06/2020
download (11).jpg		Forces War Records	Image	14/01/2021
AdobeStock_68363012.jpeg		Forces War Records	Image	9/07/2020
457889EA00000578-4993446-image-m-63_1508362652219.jpg		Forces War Records	Image	12/01/2021
Caisson.jpg		Forces War Records	Image	18/06/2018
WW II Memorial.jpg		Forces War Records	Image	23/05/2016
Friedmana.jpg		Forces War Records	Image	13/01/2021
friedman_poster_full.png		Forces War Records	Image	12/01/2021
Elizebeth Smith Friedman		Forces War Records	Memorial	12/01/2021

URL	Events	Description
William F. Friedman
Signals Intelligence Service (SIS)
Armed Forces Security Agency (AFSA)
National Security Agency (NSA)
NSA
[2]
code and ciphers
commercial codes
cryptographic machines
Aktiebolaget (AB) Cryptoteknik
Crypto AG
Boris Hagelin
Hagelin machines
AFSA
Hagelin
[4]
The Gentleman's Agreement
sell his company
BND
CIA
[5]
The Index of Coincidence
[6]
WWII
[7]
Gentleman's Agreement
[8]
NATO
this one by ourselves
Operation RUBICON
++Elizebeth Smith++