National Museum of Nuclear Science & History
T. E. Fant worked for the Roane-Anderson Company.
Sara B. Chettkow was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Fischer worked in the United States Engineer District Office.