National Museum of Nuclear Science & History
Butler worked at Los Alamos during the Manhattan Project.
Donald Engelkemeior was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Grace R. Harvey was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
D. Z. Elliott worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Brazier worked at Los Alamos during the Manhattan Project.
