National Museum of Nuclear Science & History
Frank Pratt worked for the J.A. Jones Construction Company.
J. Powell worked for the Union Carbide & Carbon Corporation.
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.
