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.
William Haag was a member of the Special Engineering Detachment at Los Alamos from August 1945 to the end of 1946.
L. W. Stark worked for the Tennessee Eastman Corporation at the Y-12 Plant.
