National Museum of Nuclear Science & History
Bruno Yurgaites was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
De Franco worked in the United States Engineer District Office.
Charles F. McKnight served as a captain in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
Roos worked at the 300 Area and the 200 West Area at Hanford during the Manhattan Project.