National Museum of Nuclear Science & History
Arnold Kramish was a physicist in the Manhattan Project and a member of the Special Engineering Detachment (SED) at Oak Ridge, Tennessee, the Philadelphia Navy Yard, and Los Alamos.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Philip Morrison (1915-2005) was an American physicist. Morrison studied under J. Robert Oppenheimer at the University of California, Berkeley, and received his Ph.
