National Museum of Nuclear Science & History
Valentin Padilla was a staff worker at Los Alamos during the Manhattan Project.
Frank Smith worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
J. M. Holliday worked for the J.A. Jones Construction Company.
Frances Zollner worked as a purchasing agent for the Manhattan Project at the University of Chicago. At Chicago, Zollner would meet many of the scientists who were improving various scientific parts and procedures throughout the duration of Manhattan Project.