National Museum of Nuclear Science & History
Mollie Sprio was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Collins worked for Stone and Webster Engineering Corporation.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
N. C. Dresser worked at the 200 West Area at Hanford during the Manhattan Project.