National Museum of Nuclear Science & History
James Roberts was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Hays worked at the 200 West Area at Hanford during the Manhattan Project.
Robert Follit was a member of the Special Engineering Detachment assigned to the 509th Composite Group on Tinian Island in the Pacfic.
Desiderio Vigil was a staff worker at Los Alamos during the Manhattan Project.