National Museum of Nuclear Science & History
W. B. Steur worked for the Tennessee Eastman Corporation at the Y-12 Plant.
McCall worked in the 100 F Area at Hanford during the Manhattan Project.
Ernest C. Lawrence was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
