National Museum of Nuclear Science & History
Samuel Paiz was a staff worker at Los Alamos during the Manhattan Project.
Schwartz worked at the 200 West Area at Hanford during the Manhattan Project.
Anna Barbic was a laboratory assistant in the the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Twichell worked at 200 West Area at Hanford during the Manhattan Project.
W. H. Rohrer worked for the Tennessee Eastman Corporation at the Y-12 Plant.