National Museum of Nuclear Science & History
R. E. Hoffman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
T. Frydell worked for the Roane-Anderson Company.
Myfanwy Pritchard Roberts worked in Rhydymwyn, Wales as a laboratory assistant in the Tube Alloys program, the British mission to create the nuclear bomb.
Mann worked in the 200 West Area at Hanford during the Manhattan Project.