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​History Blog

Manhattan Project Secrecy

11/4/2020

2 Comments

 
On Facebook this month we're going #InsideTheArchives to explore Manhattan Project secrecy.
The examiner wrote: “Sorry, Wilder, The idea is that NO EVIDENCE of censorship is to leave the site. (The official card of notification is returned to the security office). Please, no mention of ‘censorship,’ ‘security,’ ‘secrecy,’ etc. / By the way, we don’t discourage the ‘X’s’-- / Good Luck--and we’ll try not to ‘get in your hair’ too often, ‘2034’ “
A military examiner, identified only as #2034, used these two censor form slips to return a letter to Edward Wilder. Wilder Collection, Los Alamos Historical Society Archives and Collections.
During the Manhattan Project in Los Alamos, large posters featuring sayings such as “What you see here, what you do here, what you hear here, when you leave here, let it stay here” were prevalent to remind personnel of the importance of secrecy. The daily lives of the folks in Los Alamos were affected by security measures. All letters coming out of Los Alamos were checked by the military and if they were found to be in violation of Project security, they were returned to the sender. We’re sharing some of the examples we have #InsideTheArchives of the censorship that happened in Los Alamos.

For more interesting stories about censorship on “The Hill” during World War II, visit the Voices of the Manhattan Project website and listen to interviews by Pat Krikorian or Bob Carter to hear first-hand accounts of their experiences.
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  • Home
  • About Us
    • Learn / Research >
      • Information For Teachers
      • Teachers and Caregivers
      • Adult Resources >
        • National History Day
        • Homestead Driving Tour
        • History at Home
        • Pioneering Women in Los Alamos
        • Development of the Atomic Bomb
        • Links and Resources
      • Archive >
        • About the Archive
        • Research Appointments
        • Inside the Archives
        • Share Your Stories
        • COVID-19 Collecting
    • Careers/Jobs
    • Who We Are
    • Contact
  • Plan Your Visit
    • Museum Campus
    • Museum >
      • Exhibits >
        • Online and Temporary Exhibits
      • Victory Garden
      • Explore Los Alamos
    • Tours
    • Oppenheimer House
  • Programs
    • Upcoming Events
    • Lecture Series
    • Spring 2023 Tour to Trinity
    • History Award
    • Los Alamos / Japan Project
    • Volunteer Training
  • Donate
    • Membership
    • Donate to Projects
    • Legacy Society
    • Collections Donations
    • Donate Your Time- Volunteer
  • History Blog
  • Shop
    • Books
    • Children's Books & Gifts
    • Apparel
    • Gifts