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UID:92e7b30d-59ac-467c-b745-3e4527971e02
X-WR-CALDESC:14 June 1942: The Signal Intelligence Service took possession
of Arlington Hall. SIS was an early predecessor to the NSA and later appro
priated by the National Security Council who reappointed the resources int
o the modern National Security Agency. William Friedman began the division
with three 'junior cryptanalysts' in April 1930. Their names were Frank R
owlett\, Abraham Sinkov\, and Solomon Kullback.\n\nExcerpted from NSA d
ocument - Pearl Harbor Review: Signal Intelligence Service (see
link below)\n\n'It should be remembered that SIS was not attached to the
Army's intelligence organization. Military Intelligence considered cryptan
alysis merely an adjunct of cryptography\, which belonged in the Signal Co
rps. This situation continued until early in the war.\n\nSIS began with pu
rposes other than foreign intelligence\; it was to compile systems for Arm
y use and prepare cryptanalysts for wartime operations. Again like its cou
nterpart\, SIS produced valuable information almost as a by-product of tra
ining and was transformed into a production office for current COMINT.'
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DTSTAMP:20240328T113358Z
DESCRIPTION:14 June 1942: The Signal Intelligence Service took possession o
f Arlington Hall. SIS was an early predecessor to the NSA and later approp
riated by the National Security Council who reappointed the resources into
the modern National Security Agency. William Friedman began the division
with three 'junior cryptanalysts' in April 1930. Their names were Frank Ro
wlett\, Abraham Sinkov\, and Solomon Kullback.\n\nExcerpted from NSA do
cument - Pearl Harbor Review: Signal Intelligence Service (see
link below)\n\n'It should be remembered that SIS was not attached to the A
rmy's intelligence organization. Military Intelligence considered cryptana
lysis merely an adjunct of cryptography\, which belonged in the Signal Cor
ps. This situation continued until early in the war.\n\nSIS began with pur
poses other than foreign intelligence\; it was to compile systems for Army
use and prepare cryptanalysts for wartime operations. Again like its coun
terpart\, SIS produced valuable information almost as a by-product of trai
ning and was transformed into a production office for current COMINT.'
DTSTART;TZID=America/New_York:20190614T000000
DTEND;TZID=America/New_York:20190614T235900
LOCATION:
SUMMARY:1942: Signal Intelligence Service took possession of Arlington Hall
.
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