National Museum of Nuclear Science & History
Elizabeth Greisen accompanied her husband, physicist Kenneth Greisen, to Los Alamos during the Manhattan Project.
John Nomerding was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Clarence Signaigo was a laboratory helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
T. J. Grogan worked for the Tennessee Eastman Corporation at the Y-12 Plant.