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

Harry Schulman

Oak Ridge, TN

Harry Schulman worked for the A. S. Schulman Electric Company.

Simeon T. Cantril

Hanford, WA

Simeon T. Cantril (1908-1959) was an American physician. He was born on February 17, 1908 in Hyrum, Utah.

Robert W. Williams

Los Alamos, NM

Robert Williams was a staff worker at Los Alamos during the Manhattan Project.

D. E. D’Armond

Y-12 Plant

D. E. D'Armond worked for the Tennessee Eastman Corporation at the Y-12 Plant.