National Museum of Nuclear Science & History
Alfred “Al” Wiora served in the army at Los Alamos during the Manhattan Project. He studied at the University of Pennsylvania and later worked at the Hughes Aircraft Company in Tuscon, Arizona.
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.
Marselis Powell worked for the Union Carbide & Carbon Corporation.
