National Museum of Nuclear Science & History
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
Stanley Krzyck was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Robert A. Friedman served in the 603rd Air Engineering Squadron.
Sanford worked at the 300 Area at Hanford during the Manhattan Project.
Hokanson worked at the 300 at Hanford during the Manhattan Project.
