National Museum of Nuclear Science & History
Grace Wallace worked for the United States Engineer District Office.
Lulu Slaughter was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Martha G. Johnson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
T. F. Taylor worked for the Tennessee Eastman Corporation at the Y-12 Plant.
