National Museum of Nuclear Science & History
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
N. D. Barker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Pearline Boykin was a technical worker at the Metallurgical Laboratory in Chicago during the Manhattan Project.
L. G. Tanner worked for the United States Engineer District Office.