National Museum of Nuclear Science & History
Audrey Smythe worked for the Union Carbide & Carbon Corporation.
P. V. Evans worked at the 200 West Area at Hanford during the Manhattan Project.
R. O. Irwin worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.