National Museum of Nuclear Science & History
R. R. Wischmeyer worked for the Midwest Piping and Supply Company.
Hardy worked at the 200 West Area at Hanford during the Manhattan Project.
Acie Singleton was a laborator helper at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Werner H. Haak was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.