National Museum of Nuclear Science & History
F. L. Hopkins worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Goldring worked in the United States Engineer District Office.
Pfeiff worked in the 200 West Area at Hanford during the Manhattan Project.
Michael Cefola was an American chemist and a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
