National Museum of Nuclear Science & History
Grafton worked in the United States Engineer District Office.
Lew Kowarski was a Russian-born French physicist. He worked as part of the team that discovered that neutrons were emitted in the fission of uranium-235 in the 1930s, setting the groundwork for the use of nuclear chain reactions in the design of the atomic bomb.
Victor C. Hamister was a consultant to the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Stanley L. Kieltyka served in the 393rd Bombardment Squadron.
