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National Museum of Nuclear Science & History

Neil S. Bergen

Security GuardChicago, IL

Manhattan Project Veteran

Neil Bergen was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.

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Eleanor Johnson

Hanford, WA

P.M. Hurley

Research & Development/300 Area

Hurley worked at the 300 Area at Hanford during the Manhattan Project.

Leland F. Pettengill

Tinian Island

Pettengill served in the 393rd Bombardment Squadron.

Waldemar Nielsen

Japan

​ Waldemar Nielsen (1917-2005) worked on the postwar surveys of Hiroshima and Nagasaki in Japan. Nielsen was born in Greensburg, Pennsylvania.