Letter from Robie S. Lange to Harry S. Truman Presidential Library Staff, with Attached Drawings
The drawings attached to this letter are architectural and engineering drawings of McDonald Ranch at Trinity Site. The ranch house served as the site of the final assembly of the plutonium core for the world's first atomic bomb, detonated at Trinity Site in Los Alamos, New Mex...
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OCR Page 1 of 9CHC
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United States Department of the Interior
MHDC
NATIONAL PARK SERVICE
Morch
3
1849
WASHINGTON, D.C. 20240
IN REPLY REFER TO:
HABS/HAER(429)
March 1, 1984
Reference Staff
Harry S. Truman Library
Independence, Missouri 64050
Dear Sir:
I wish to acknowledge receipt of those items I requested copied from the
Lansing Lamont Papers. I very much enjoyed my visit of February 3 and wish to
thank you for your assistance. The material sent has provided important
insight into the precise events at the McDonald Ranch leading up to the first
atomic test at Trinity Site.
I want to take this opportunity to send you a reduced copy of the measured
drawings prepared as part of this project. Please feel free to circulate them
to anyone interested in the Manhattan Project. Eventually the original
drawings will join the rest of the HABS/HAER Collection at the Library of
Congress.
Once more, thank you for your assistance
Sincerely,
Robie S.Large
Robie S. Lange
DARCOM Project Manager
Historic American Buildings Survey/
Historic American Engineering Record
National Park Service
Enclosure
MAR 5 1984
TANAA
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