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

Edward F. Kolley

Edward F. Kolley was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank Morgan

Frank Morgan was a staff worker at Los Alamos during the Manhattan Project.

William H. Poole

Charles C. Campbell