National Museum of Nuclear Science & History
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ralph Watson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Charles Tardiff worked for the Kellex Corporation at the K-25 Plant.
Clingerman worked at the 200 West Area at Hanford during the Manhattan Project.