National Museum of Nuclear Science & History
McCall worked in the 100 F Area at Hanford during the Manhattan Project.
Harold Knisley served as a private first class in the 393rd Bomb Squadron in the 509th Composite Group as an aircraft mechanic.
Walter Brill worked for the Fercleve Corporation.
Prisda Rosen was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
