Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Joseph LaRocco

Security GuardChicago, IL

Manhattan Project Veteran

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

Related Profiles

H. M. Atwood

X-10 Graphite Reactor

H. M. Atwood worked for Clinton Laboratories at the X-10 Reactor.

Helene M. Smith

Chicago, IL

Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Jane R. Arnold

Chicago, IL

Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.

Gordon J. Allman

Los Alamos, NM