National Museum of Nuclear Science & History
Iver Samuelson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Calhoun worked at the 300 Area at Hanford during the Manhattan Project.
Howard Rosenthal served in the First Ordnance Squadron.
Edward J. Fredrick was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
