National Museum of Nuclear Science & History
Piper worked for Stone and Webster Engineering Corporation.
Dorothy worked at Oak Ridge during the Manhattan Project as a “calutron girl.” After her brother was killed in the attack on Pearl Harbor, she was eager to join the war effort, and did so starting in 1944.
Robert Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
W. E. Shedden worked for the Tennessee Eastman Corporation at the Y-12 Plant.