National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Jose Romero was a staff worker at Los Alamos during the Manhattan Project.
M. A. Obermeyer worked for the J.A. Jones Construction Company.
Frank Huke worked on the Mahattan Project in Chicago and as a part of the Ames Project, the uranium production process based in Ames, Iowa.
