Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Leo P. Hassen

Security GuardChicago, IL

Manhattan Project Veteran

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

Related Profiles

C. B. Foos

Y-12 Plant

C. B. Foos worked for the Tennessee Eastman Corporation at the Y-12 Plant.

R. F. Warren

Oak Ridge, TN

R. F. Warren worked for the United States Engineer District Office.

M.F. Rice

B Reactor/100 Area

Rice worked at the 100-F area at Hanford during the Manhattan Project.

B. H. Ronfeld

Tinian Island

B. H. Ronfeld served in the 509th Headquarters.