National Museum of Nuclear Science & History
C. S. Hamer worked for the Roane-Anderson Company.
Gloria Peterson was a stenographer and clerical worker at the Chicago Met Lab.
Blanche J. Lawrence was an African-American research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Wynona Naranjo was a staff worker at Los Alamos during the Manhattan Project.