National Museum of Nuclear Science & History
T. J. Costello worked for the Comstock-Bryant Electric Company.
Ubaldo Sanchez was a staff worker at Los Alamos during the Manhattan Project.
Horace Russell was a staff worker at Los Alamos during the Manhattan Project. He graduated from Duke in 1938 with a degree in chemistry and was remembered by his classmates as a brilliant chemist.
Andrew Welch was a janitor at the Chicago Met Lab during the Manhattan Project.