National Museum of Nuclear Science & History
H. R. Kroegar worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Helen Schneider was a staff worker at Los Alamos during the Manhattan Project.
Roberta A. Edwards was a lab technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Phaling worked in the 300 Area at Hanford during the Manhattan Project.
Leonard Simpson served in the 1395th Military Police Aviation.
