National Museum of Nuclear Science & History
J. Webb worked for the Roane-Anderson Company.
S. Schulder worked for the Union Carbide & Carbon Corporation.
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Grim worked for Stone and Webster Engineering Corporation.
Anton Kegl was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.