National Museum of Nuclear Science & History
Winfield Sylvester was a staff worker at Los Alamos during the Manhattan Project.
Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
H.A. Deitrick worked at the 100-F Area at Hanford during the Manhattan Project.
J. A. Morring worked for the Tennessee Eastman Corporation at the Y-12 Plant.