National Museum of Nuclear Science & History
Kelleher worked for Stone and Webster Engineering Corporation.
Chester G. Pirkle served in the 1027th Air Material Squadron.
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.
