National Museum of Nuclear Science & History
Martha Walker worked for the United States Engineer District Office.
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Elzie Chapman served in the 1395th Military Police Company, Aviation.
Lucy Mabins was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.