National Museum of Nuclear Science & History
Leifermann worked in the 100 D Area at Hanford during the Manhattan Project.
Richard F. Cannon served as a corporal in the 393rd Bombardment Squadron. He was assigned as the radar operator in the Necessary Evil, but flew in the Big Stink in the 1945 bombing mission on Nagasaki.
Alexander Blair was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.