National Museum of Nuclear Science & History
N. J. Holland worked for the Roane-Anderson Company.
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.
Ivan H. Stewart served in the 393rd Bombardment Squadron.
Swan Swanson was a staff worker at Los Alamos during the Manhattan Project.