National Museum of Nuclear Science & History
S. D. Tatalovich worked for the United States Engineer District Office.
Chastain worked in the United States Engineering District Office.
R. E. Breathitt worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.