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National Museum of Nuclear Science & History

Joseph Caldwell

Security GuardChicago, IL

Manhattan Project Veteran

Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

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Ellsworth T. Carrington served as a 2nd lieutenant in the 393rd Bombardment Squadron. He was the co-pilot on the Jabit III during the Hiroshima mission.

Jack Aeby

Los Alamos, NM

Jack Aeby graduated Mound City (MO) High School in 1941. He went to the University of Nebraska, studying chemistry until the spring of 1943 when he received his draft notice.