National Museum of Nuclear Science & History
Magdaline Penny worked for the United States Engineer District Office.
Ruth Hillard was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Millett worked in the 200 West Area at Hanford during the Manhattan Project.
R. L. Eshelman worked at the 100-B Area at Hanford during the Manhattan Project.
Harold Lichtenberger was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
