National Museum of Nuclear Science & History
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
G. W. Dorsey worked at the 200 West Area at Hanford during the Manhattan Project.
Ray Mettelka worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Ernest E. Wollan was a research associate at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.