Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Joseph H. Heartberg

Security GuardChicago, IL

Manhattan Project Veteran

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

Related Profiles

John F. Loomis

Tinian Island

John F. Loomis served in the 603rd Air Engineering Squadron.

Grover H. Catt

Tinian Island

Grover H. Catt served in the 393rd Bombardment Squadron.

Paul J. O’Brien

Hanford, WA

H. L. Ray

K-25 Plant

H. L. Ray worked for the Kellex Corporation at the K-25 Plant.